extend X86_GRUB_ROOTPART selection to jffs2 images

SVN-Revision: 5308

target/image/x86/Makefile

@@ -17,11 +17,11 @@ ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
   endef
 
   define Image/cmdline/jffs2-64k
-    block2mtd.block2mtd=/dev/hda2,65536 root=/dev/mtdblock0 rootfstype=jffs2
+    block2mtd.block2mtd=$(CONFIG_X86_GRUB_ROOTPART),65536 root=/dev/mtdblock0 rootfstype=jffs2
   endef
 
   define Image/cmdline/jffs2-128k
-    block2mtd.block2mtd=/dev/hda2,131072 root=/dev/mtdblock0 rootfstype=jffs2
+    block2mtd.block2mtd=$(CONFIG_X86_GRUB_ROOTPART),131072 root=/dev/mtdblock0 rootfstype=jffs2
   endef
 
   define Image/cmdline/ext2