libextractor: fix PKG_HASH

Instead of libextractor-1.8.tar.gz, the SHA-256 sum of
libextractor-1.8.tar.gz.sig was entered by accident.
Fix that.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/libextractor/Makefile

@@ -14,7 +14,7 @@ PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@GNU/$(PKG_NAME)
-PKG_HASH:=bb0f8abab3c0345a538ed92f24b5bfe8fcf8261e564b37861c7dc0ffc75805f5
+PKG_HASH:=e235a4aa2623fe458f8fcf1dcbb5be4f03df509aacec86a1de1fc7fcca582cfc
 
 PKG_LICENSE:=GPL-3.0
 PKG_LICENSE_FILES:=COPYING