postgresql: update to version 9.4.12

Fixes CVE-2017-7484 and CVE-2017-7485.

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

libs/postgresql/Makefile

@@ -8,8 +8,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=postgresql
-PKG_VERSION:=9.5.4
-PKG_RELEASE:=4
+PKG_VERSION:=9.4.12
+PKG_RELEASE:=1
 PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>
 PKG_LICENSE:=PostgreSQL
 
@@ -18,7 +18,7 @@ PKG_SOURCE_URL:=\
 	https://ftp.postgresql.org/pub/source/v$(PKG_VERSION) \
 	http://ftp.postgresql.org/pub/source/v$(PKG_VERSION) \
 	ftp://ftp.postgresql.org/pub/source/v$(PKG_VERSION)
-PKG_MD5SUM:=cf5e571164ad66028ecd7dd8819e3765470d45bcd440d258b686be7e69c76ed0
+PKG_MD5SUM:=fca055481875d1c49e31c28443f56472a1474b3fbe25b7ae64440c6118f82e64
 PKG_BUILD_PARALLEL:=1
 PKG_USE_MIPS16:=0
 PKG_FIXUP:=autoreconf