use 2.6.31.5, left-over from r18279

SVN-Revision: 18280

target/linux/x86/Makefile

@@ -12,7 +12,7 @@ BOARDNAME:=x86
 FEATURES:=squashfs jffs2 ext2 vdi vmdk pcmcia tgz
 SUBTARGETS=generic olpc
 
-LINUX_VERSION:=2.6.30.9
+LINUX_VERSION:=2.6.31.5
 
 include $(INCLUDE_DIR)/target.mk