use the new option for creating squashfs4-lzma images

SVN-Revision: 18269

include/image.mk

@@ -31,7 +31,7 @@ ifneq ($(USE_SQUASHFS3),)
 MKSQUASHFS_CMD := $(STAGING_DIR_HOST)/bin/mksquashfs-lzma
 else
 MKSQUASHFS_CMD := $(STAGING_DIR_HOST)/bin/mksquashfs4
-SQUASHFS_OPTS  := -lzma -processors 1
+SQUASHFS_OPTS  := -comp lzma -processors 1
 endif
 
 JFFS2_BLOCKSIZE ?= 64k 128k