package/mbedtls: security bump to version 2.28.1

Fix CVE-2022-35409: Buffer overread in DTLS ClientHello parsing.

https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/advisories/mbedtls-security-advisory-2022-07.md
https://github.com/Mbed-TLS/mbedtls/releases/tag/v2.28.1

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/mbedtls/mbedtls.hash

@@ -1,4 +1,4 @@
-# From https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0:
-sha256  6519579b836ed78cc549375c7c18b111df5717e86ca0eeff4cb64b2674f424cc  mbedtls-2.28.0.tar.gz
+# From https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.1:
+sha256  6797a7b6483ef589deeab8d33d401ed235d7be25eeecda1be8ddfed406d40ff4  mbedtls-2.28.1.tar.gz
 # Locally calculated
 sha256  cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30  LICENSE

package/mbedtls/mbedtls.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-MBEDTLS_VERSION = 2.28.0
+MBEDTLS_VERSION = 2.28.1
 MBEDTLS_SITE = $(call github,ARMmbed,mbedtls,v$(MBEDTLS_VERSION))
 MBEDTLS_CONF_OPTS = \
 	-DCMAKE_C_FLAGS="$(TARGET_CFLAGS) -std=c99" \