package/shairport-sync: fix build w/ mbedtls v3.6

Since [1] when trying to build this package with mbedtls v3.6 the
following error is happening:

```
player.h:12:10: fatal error: mbedtls/havege.h: No such file or directory
   12 | #include <mbedtls/havege.h>
      |          ^~~~~~~~~~~~~~~~~~
compilation terminated.
```

This error can be reproduced with the following config:

```
cat <<EOF >.config
BR2_arm=y
BR2_cortex_a7=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_BOOTLIN=y
BR2_PACKAGE_MBEDTLS=y
BR2_PACKAGE_SHAIRPORT_SYNC=y
EOF
make olddefconfig
make
```

This patch backport the upstream commit [2] that add support for
mbedtls v3.

[1] 3481a9643f package/mbedtls: bump to version 3.6.3.1
[2] https://github.com/mikebrady/shairport-sync/commit/d73b585c6f6d9136ae7a04243a54d734fa57d779

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit d53f8f26910df2f75e0f4a053fd6ef0c65e639c1)
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>

package/shairport-sync/0002-mbedtls-add-support-to-mbedtls3.patch

@@ -0,0 +1,105 @@
+From d73b585c6f6d9136ae7a04243a54d734fa57d779 Mon Sep 17 00:00:00 2001
+From: Seo Suchan <tjtncks@gmail.com>
+Date: Thu, 9 May 2024 19:10:59 +0900
+Subject: [PATCH] mbedtls: add support to mbedtls3
+
+Signed-off-by: Seo Suchan <tjtncks@gmail.com>
+Upstream: https://github.com/mikebrady/shairport-sync/commit/d73b585c6f6d9136ae7a04243a54d734fa57d779
+[thomas: backport the line numbers]
+Signed-off-by: Thomas Perale <thomas.perale@mind.be>
+---
+ common.c | 30 ++++++++++++++++++++++++++----
+ player.c |  1 -
+ player.h |  1 -
+ 3 files changed, 26 insertions(+), 6 deletions(-)
+
+diff --git a/common.c b/common.c
+index 4dc75bc7f..0e2a07243 100644
+--- a/common.c
++++ b/common.c
+@@ -77,6 +77,12 @@
+ #include <mbedtls/md.h>
+ #include <mbedtls/version.h>
+ #include <mbedtls/x509.h>
++
++#if MBEDTLS_VERSION_MAJOR == 3
++#define MBEDTLS_PRIVATE_V3_ONLY(_q) MBEDTLS_PRIVATE(_q)
++#else
++#define MBEDTLS_PRIVATE_V3_ONLY(_q) _q
++#endif
+ #endif
+ 
+ #ifdef CONFIG_LIBDAEMON
+@@ -691,8 +697,14 @@ uint8_t *rsa_apply(uint8_t *input, int inlen, int *outlen, int mode) {
+ 
+   mbedtls_pk_init(&pkctx);
+ 
++#if MBEDTLS_VERSION_MAJOR == 3
+   rc = mbedtls_pk_parse_key(&pkctx, (unsigned char *)super_secret_key, sizeof(super_secret_key),
++                            NULL, 0, mbedtls_ctr_drbg_random, &ctr_drbg);
++#else
++  rc = mbedtls_pk_parse_key(&pkctx, (unsigned char *)super_secret_key, sizeof(super_secret_key), 
+                             NULL, 0);
++
++#endif
+   if (rc != 0)
+     debug(1, "Error %d reading the private key.", rc);
+ 
+@@ -701,19 +713,29 @@ uint8_t *rsa_apply(uint8_t *input, int inlen, int *outlen, int mode) {
+ 
+   switch (mode) {
+   case RSA_MODE_AUTH:
+-    mbedtls_rsa_set_padding(trsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE);
+-    outbuf = malloc(trsa->len);
++    mbedtls_rsa_set_padding(trsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_NONE);    
++    outbuf = malloc(trsa->MBEDTLS_PRIVATE_V3_ONLY(len));
++#if MBEDTLS_VERSION_MAJOR == 3
++    rc = mbedtls_rsa_pkcs1_encrypt(trsa, mbedtls_ctr_drbg_random, &ctr_drbg,
++                                   inlen, input, outbuf);
++#else
+     rc = mbedtls_rsa_pkcs1_encrypt(trsa, mbedtls_ctr_drbg_random, &ctr_drbg, MBEDTLS_RSA_PRIVATE,
+                                    inlen, input, outbuf);
++#endif
+     if (rc != 0)
+       debug(1, "mbedtls_pk_encrypt error %d.", rc);
+-    *outlen = trsa->len;
++    *outlen = trsa->MBEDTLS_PRIVATE_V3_ONLY(len);
+     break;
+   case RSA_MODE_KEY:
+     mbedtls_rsa_set_padding(trsa, MBEDTLS_RSA_PKCS_V21, MBEDTLS_MD_SHA1);
+-    outbuf = malloc(trsa->len);
++    outbuf = malloc(trsa->MBEDTLS_PRIVATE_V3_ONLY(len));
++#if MBEDTLS_VERSION_MAJOR == 3
++    rc = mbedtls_rsa_pkcs1_decrypt(trsa, mbedtls_ctr_drbg_random, &ctr_drbg,
++                                   &olen, input, outbuf, trsa->MBEDTLS_PRIVATE_V3_ONLY(len));
++#else
+     rc = mbedtls_rsa_pkcs1_decrypt(trsa, mbedtls_ctr_drbg_random, &ctr_drbg, MBEDTLS_RSA_PRIVATE,
+                                    &olen, input, outbuf, trsa->len);
++#endif
+     if (rc != 0)
+       debug(1, "mbedtls_pk_decrypt error %d.", rc);
+     *outlen = olen;
+diff --git a/player.c b/player.c
+index 8c1752722..d023d269c 100644
+--- a/player.c
++++ b/player.c
+@@ -47,7 +47,6 @@
+ 
+ #ifdef CONFIG_MBEDTLS
+ #include <mbedtls/aes.h>
+-#include <mbedtls/havege.h>
+ #endif
+ 
+ #ifdef CONFIG_POLARSSL
+diff --git a/player.h b/player.h
+index 11435bf91..b35eb7652 100644
+--- a/player.h
++++ b/player.h
+@@ -9,7 +9,6 @@
+ 
+ #ifdef CONFIG_MBEDTLS
+ #include <mbedtls/aes.h>
+-#include <mbedtls/havege.h>
+ #endif
+ 
+ #ifdef CONFIG_POLARSSL