wolfssl: bump to 4.1.0-stable

Always build AES-GCM support.
Unnecessary patches were removed.

This includes two vulnerability fixes:

CVE-2019-11873: a potential buffer overflow case with the TLSv1.3 PSK
extension parsing.

CVE-2019-13628 (currently assigned-only): potential leak of nonce sizes
when performing ECDSA signing operations. The leak is considered to be
difficult to exploit but it could potentially be used maliciously to
perform a lattice based timing attack.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>

package/libs/wolfssl/patches/100-disable-hardening-check.patch

@@ -1,6 +1,6 @@
 --- a/wolfssl/wolfcrypt/settings.h
 +++ b/wolfssl/wolfcrypt/settings.h
-@@ -1880,7 +1880,7 @@ extern void uITRON4_free(void *p) ;
+@@ -1930,7 +1930,7 @@ extern void uITRON4_free(void *p) ;
  #endif
  
  /* warning for not using harden build options (default with ./configure) */

package/libs/wolfssl/patches/400-additional_compatibility.patch

@@ -1,12 +0,0 @@
---- a/cyassl/openssl/ssl.h
-+++ b/cyassl/openssl/ssl.h
-@@ -28,6 +28,9 @@
- #define CYASSL_OPENSSL_H_
- 
- #include <cyassl/ssl.h>
-+#ifndef HAVE_SNI
-+#undef CYASSL_SNI_HOST_NAME
-+#endif
- #include <wolfssl/openssl/ssl.h>
- 
- #endif

package/libs/wolfssl/patches/900-remove-broken-autoconf-macros.patch

@@ -1,21 +0,0 @@
---- a/configure.ac
-+++ b/configure.ac
-@@ -4740,7 +4740,6 @@ AC_CONFIG_FILES([stamp-h], [echo timesta
- AC_CONFIG_FILES([Makefile wolfssl/version.h wolfssl/options.h cyassl/options.h support/wolfssl.pc rpm/spec])
- 
- AX_CREATE_GENERIC_CONFIG
--AX_AM_JOBSERVER([yes])
- 
- AC_OUTPUT
- 
---- a/Makefile.am
-+++ b/Makefile.am
-@@ -20,8 +20,6 @@ dist_noinst_SCRIPTS =
- noinst_SCRIPTS =
- check_SCRIPTS =
- 
--#includes additional rules from aminclude.am
--@INC_AMINCLUDE@
- DISTCLEANFILES+= aminclude.am
- 
- CLEANFILES+= cert.der \