tools: zstd: update to 1.5.7

This new version has some performance enhancements.

Changelog:
https://github.com/facebook/zstd/releases/tag/v1.5.7

Upstreamed patch:
001-Provide-variant-pkg-config-file-for-multi-threaded-s.patch[1]

[1] facebook/zstd@f1f1ae3

Signed-off-by: Shiji Yang <[email protected]>
Link: openwrt/openwrt#18064
Signed-off-by: Robert Marko <[email protected]>
(cherry picked from commit ce67f08)

Author: DragonBluep

tools/zstd/Makefile

@@ -1,11 +1,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zstd
-PKG_VERSION:=1.5.6
+PKG_VERSION:=1.5.7
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/facebook/zstd/releases/download/v$(PKG_VERSION)
-PKG_HASH:=8c29e06cf42aacc1eafc4077ae2ec6c6fcb96a626157e0593d5e82a34fd403c1
+PKG_HASH:=eb33e51f49a15e023950cd7825ca74a4a2b43db8354825ac24fc1b7ee09e6fa3
 
 PKG_LICENSE:=BSD-3-Clause
 PKG_LICENSE_FILES:=LICENSE