zstd: update to 1.5.2

Signed-off-by: Rosen Penev <rosenp@gmail.com>

utils/zstd/Makefile

@@ -1,12 +1,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=zstd
-PKG_VERSION:=1.5.0
+PKG_VERSION:=1.5.2
 PKG_RELEASE:=$(AUTORELEASE)
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.zst
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/facebook/zstd/releases/download/v$(PKG_VERSION)
-PKG_HASH:=9aa8dfc1ca17f358b28988ca1f6e00ffe1c6f3198853f8d2022799e6f0669180
+PKG_HASH:=7c42d56fac126929a6a85dbc73ff1db2411d04f104fae9bdea51305663a83fd0
 
 PKG_MAINTAINER:=
 PKG_LICENSE:=GPL-2.0-or-later