package/libcurl: security bump to version 7.64.0

Fixes the following security issues:

CVE-2018-16890: NTLM type-2 out-of-bounds buffer read
https://curl.haxx.se/docs/CVE-2018-16890.html

CVE-2019-3822: NTLMv2 type-3 header stack buffer overflow
https://curl.haxx.se/docs/CVE-2019-3822.html

CVE-2019-3823: SMTP end-of-response out-of-bounds read
https://curl.haxx.se/docs/CVE-2019-3823.html

The copyright year changed in the COPYING file, so update the hash.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libcurl/libcurl.hash

@@ -1,5 +1,5 @@
 # Locally calculated after checking pgp signature
-# https://curl.haxx.se/download/curl-7.62.0.tar.xz.asc
+# https://curl.haxx.se/download/curl-7.64.0.tar.xz.asc
 # with key 27EDEAF22F3ABCEB50DB9A125CC908FDB71E12C2
-sha256 dab5643a5fe775ae92570b9f3df6b0ef4bc2a827a959361fb130c73b721275c1  curl-7.62.0.tar.xz
-sha256 5f3849ec38ddb927e79f514bf948890c41b8d1407286a49609b8fb1585931095  COPYING
+sha256 2f2f13fa34d44aa29cb444077ad7dc4dc6d189584ad552e0aaeb06e608af6001  curl-7.64.0.tar.xz
+sha256 8c8824f50e73a021f5dde1fccbf69685939247399a33a32abab1fa448c9ddabb  COPYING

package/libcurl/libcurl.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-LIBCURL_VERSION = 7.62.0
+LIBCURL_VERSION = 7.64.0
 LIBCURL_SOURCE = curl-$(LIBCURL_VERSION).tar.xz
 LIBCURL_SITE = https://curl.haxx.se/download
 LIBCURL_DEPENDENCIES = host-pkgconf \