wolfssl: Update to version 4.5.0

This fixes the following security problems:
* In earlier versions of wolfSSL there exists a potential man in the
  middle attack on TLS 1.3 clients.
* Denial of service attack on TLS 1.3 servers from repetitively sending
  ChangeCipherSpecs messages. (CVE-2020-12457)
* Potential cache timing attacks on public key operations in builds that
  are not using SP (single precision). (CVE-2020-15309)
* When using SGX with EC scalar multiplication the possibility of side-
  channel attacks are present.
* Leak of private key in the case that PEM format private keys are
  bundled in with PEM certificates into a single file.
* During the handshake, clear application_data messages in epoch 0 are
  processed and returned to the application.

Full changelog:
https://www.wolfssl.com/docs/wolfssl-changelog/

Fix a build error on big endian systems by backporting a pull request:
https://github.com/wolfSSL/wolfssl/pull/3255

The size of the ipk increases on mips BE by 1.4%
old:
libwolfssl24_4.4.0-stable-2_mips_24kc.ipk:	386246
new:
libwolfssl24_4.5.0-stable-1_mips_24kc.ipk:	391528

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

package/libs/wolfssl/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=wolfssl
-PKG_VERSION:=4.4.0-stable
+PKG_VERSION:=4.5.0-stable
-PKG_RELEASE:=2
+PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/wolfSSL/wolfssl/archive/v$(PKG_VERSION)
-PKG_HASH:=7f854804c8ae0ca49cc77809e38e9a3b5a8c91ba7855ea928e6d6651b0d35f18
+PKG_HASH:=7de62300ce14daa0051bfefc7c4d6302f96cabc768b6ae49eda77523b118250c
 
 PKG_FIXUP:=libtool
 PKG_INSTALL:=1

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

@@ -1,6 +1,6 @@
 --- a/wolfssl/wolfcrypt/settings.h
 +++ b/wolfssl/wolfcrypt/settings.h
-@@ -1930,7 +1930,7 @@ extern void uITRON4_free(void *p) ;
+@@ -2128,7 +2128,7 @@ extern void uITRON4_free(void *p) ;
  #endif
  
  /* warning for not using harden build options (default with ./configure) */

package/libs/wolfssl/patches/110-fix-build-on-big-endian.patch

@@ -0,0 +1,27 @@
+From b90acc91d0cd276befe7f08f87ba2dc5ee7122ff Mon Sep 17 00:00:00 2001
+From: Tesfa Mael <tesfa@wolfssl.com>
+Date: Wed, 26 Aug 2020 10:13:06 -0700
+Subject: [PATCH] Make ByteReverseWords available for big and little endian
+
+---
+ wolfcrypt/src/misc.c | 2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/wolfcrypt/src/misc.c
++++ b/wolfcrypt/src/misc.c
+@@ -120,7 +120,6 @@ WC_STATIC WC_INLINE word32 ByteReverseWo
+     return rotlFixed(value, 16U);
+ #endif
+ }
+-#if defined(LITTLE_ENDIAN_ORDER)
+ /* This routine performs a byte swap of words array of a given count. */
+ WC_STATIC WC_INLINE void ByteReverseWords(word32* out, const word32* in,
+                                     word32 byteCount)
+@@ -131,7 +130,6 @@ WC_STATIC WC_INLINE void ByteReverseWord
+         out[i] = ByteReverseWord32(in[i]);
+ 
+ }
+-#endif /* LITTLE_ENDIAN_ORDER */
+ 
+ #if defined(WORD64_AVAILABLE) && !defined(WOLFSSL_NO_WORD64_OPS)
+