package/lz4: bump to version 1.9.4

LZ4 v1.9.4 is a maintenance release, featuring a substantial amount
(~350 commits) of minor fixes and improvements, making it a recommended
upgrade. The stable portion of liblz4 API is unmodified, making this
release a drop-in replacement for existing features.

- Drop patch (already in version)
- Update hash of lib/LICENSE (update in year with
  https://github.com/lz4/lz4/commit/87a80acbe7872b9da7d56f7005ffd1b715e87c93)

https://github.com/lz4/lz4/releases/tag/v1.9.4

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/lz4/0001-Fix-potential-memory-corruption-with-negative-memmov.patch

@@ -1,26 +0,0 @@
-From 8301a21773ef61656225e264f4f06ae14462bca7 Mon Sep 17 00:00:00 2001
-From: Jasper Lievisse Adriaanse <j@jasper.la>
-Date: Fri, 26 Feb 2021 15:21:20 +0100
-Subject: [PATCH] Fix potential memory corruption with negative memmove() size
-
-Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
----
- lib/lz4.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/lib/lz4.c b/lib/lz4.c
-index 5f524d0..c2f504e 100644
---- a/lib/lz4.c
-+++ b/lib/lz4.c
-@@ -1749,7 +1749,7 @@ LZ4_decompress_generic(
-                  const size_t dictSize         /* note : = 0 if noDict */
-                  )
- {
--    if (src == NULL) { return -1; }
-+    if ((src == NULL) || (outputSize < 0)) { return -1; }
- 
-     {   const BYTE* ip = (const BYTE*) src;
-         const BYTE* const iend = ip + srcSize;
--- 
-2.20.1
-

package/lz4/lz4.hash

@@ -1,4 +1,4 @@
 # sha256 locally computed
-sha256  030644df4611007ff7dc962d981f390361e6c97a34e5cbc393ddfbe019ffe2c1  lz4-1.9.3.tar.gz
-sha256  d15d99c8dc6b0ec22174c0e563a95bc40f9363ca7f9d9d793bb5c5a8e8d0af71  lib/LICENSE
+sha256  0b0e3aa07c8c063ddf40b082bdf7e37a1562bda40a0ff5272957f3e987e0e54b  lz4-1.9.4.tar.gz
+sha256  8b58c446121a109ccf32edc094bba3010a3d85e4ee3702950db55e4d3e87736c  lib/LICENSE
 sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  programs/COPYING

package/lz4/lz4.mk

@@ -4,16 +4,13 @@
 #
 ################################################################################
 
-LZ4_VERSION = 1.9.3
+LZ4_VERSION = 1.9.4
 LZ4_SITE = $(call github,lz4,lz4,v$(LZ4_VERSION))
 LZ4_INSTALL_STAGING = YES
 LZ4_LICENSE = BSD-2-Clause (library), GPL-2.0+ (programs)
 LZ4_LICENSE_FILES = lib/LICENSE programs/COPYING
 LZ4_CPE_ID_VENDOR = lz4_project
 
-# 0001-Fix-potential-memory-corruption-with-negative-memmov.patch
-LZ4_IGNORE_CVES += CVE-2021-3520
-
 ifeq ($(BR2_STATIC_LIBS),y)
 LZ4_MAKE_OPTS += BUILD_SHARED=no
 else ifeq ($(BR2_SHARED_LIBS),y)