gnutls: update to v3.8.0

Fixes: openwrt/openwrt#12542
The detailed list of changes follows:

* Version 3.8.0 (released 2023-02-09)

** libgnutls: Fix a Bleichenbacher oracle in the TLS RSA key exchange.
Reported by Hubert Kario (openwrt#1050). Fix developed by Alexander Sosedkin.
[GNUTLS-SA-2020-07-14, CVSS: medium] [CVE-2023-0361]

** libgnutls: C++ library is now header only. All definitions from
gnutlsxx.c have been moved into gnutlsxx.h. Users of the C++
interface have two options:
1. include gnutlsxx.h in their application and link against
the C library. (default)
2. include gnutlsxx.h in their application, compile with
GNUTLS_GNUTLSXX_NO_HEADERONLY macro defined and link
against the C++ library.

** libgnutls: GNUTLS_NO_STATUS_REQUEST flag and %NO_STATUS_REQUEST
priority modifier have been added to allow disabling of the
status_request TLS extension in the client side.

** libgnutls: TLS heartbeat is disabled by default.
The heartbeat extension in TLS (RFC 6520) is not widely used given
other implementations dropped support for it. To enable back
support for it, supply --enable-heartbeat-support to configure
script.

** libgnutls: SRP authentication is now disabled by default.
It is disabled because the SRP authentication in TLS is not up to
date with the latest TLS standards and its ciphersuites are based
on the CBC mode and SHA-1. To enable it back, supply
--enable-srp-authentication option to configure script.

** libgnutls: All code has been indented using "indent -ppi1 -linux".
CI/CD has been adjusted to catch regressions. This is implemented
through devel/indent-gnutls, devel/indent-maybe and .gitlab-ci.yml’s
commit-check. You may run devel/indent-gnutls to fix any
indentation issues if you make code modifications.

** guile: Guile-bindings removed.
They have been extracted into a separate project to reduce complexity
and to simplify maintenance, see <https://gitlab.com/gnutls/guile/>.

** minitasn1: Upgraded to libtasn1 version 4.19.

** API and ABI modifications:
GNUTLS_NO_STATUS_REQUEST: New flag
GNUTLS_SRTP_AEAD_AES_128_GCM: New gnutls_srtp_profile_t enum member
GNUTLS_SRTP_AEAD_AES_256_GCM: New gnutls_srtp_profile_t enum member

Signed-off-by: Antonio Flores <antflores627@gmail.com>

libs/gnutls/Makefile

@@ -6,13 +6,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=gnutls
-PKG_VERSION:=3.7.8
-PKG_RELEASE:=2
+PKG_VERSION:=3.8.0
+PKG_RELEASE:=1
 PKG_BUILD_FLAGS:=no-mips16
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
-PKG_SOURCE_URL:=https://www.gnupg.org/ftp/gcrypt/gnutls/v3.7
-PKG_HASH:=c58ad39af0670efe6a8aee5e3a8b2331a1200418b64b7c51977fb396d4617114
+PKG_SOURCE_URL:=https://www.gnupg.org/ftp/gcrypt/gnutls/v3.8
+PKG_HASH:=0ea0d11a1660a1e63f960f157b197abe6d0c8cb3255be24e1fb3815930b9bdc5
 
 PKG_MAINTAINER:=Nikos Mavrogiannopoulos <nmav@gnutls.org>
 PKG_LICENSE:=LGPL-2.1-or-later

libs/gnutls/patches/010-m4.patch

@@ -62,12 +62,12 @@
      [AC_COMPILE_IFELSE(
 --- a/src/gl/m4/gnulib-comp.m4
 +++ b/src/gl/m4/gnulib-comp.m4
-@@ -1188,7 +1188,7 @@ changequote([, ])dnl
+@@ -1252,7 +1252,7 @@ changequote([, ])dnl
    gl_UNISTD_MODULE_INDICATOR([sleep])
    AC_CHECK_DECLS_ONCE([alarm])
    AC_REQUIRE([gt_TYPE_WCHAR_T])
 -  AC_REQUIRE([gt_TYPE_WINT_T])
 +  AC_REQUIRE([gt_TYPE_WINT_T_GNUTLS])
    gl_FUNC_STRERROR_R
-   if test $HAVE_DECL_STRERROR_R = 0 || test $REPLACE_STRERROR_R = 1; then
+   AS_IF([test $HAVE_DECL_STRERROR_R = 0 || test $REPLACE_STRERROR_R = 1], [
      AC_LIBOBJ([strerror_r])

libs/gnutls/patches/020-dont-install-m4-files.patch

@@ -14,7 +14,7 @@ Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
 
 --- a/Makefile.am
 +++ b/Makefile.am
-@@ -57,7 +57,7 @@ if ENABLE_DOC
+@@ -48,7 +48,7 @@ if ENABLE_DOC
  SUBDIRS += doc
  endif