ar71xx: fix initramfs image generation for Cameo933x profiles

Initramfs images are not generated for profiles which
are using the squashfs-only template. Add the missing
'Image/Build/Template/squashfs-only/initramfs' to fix
that.

Also, 'Image/Build/Cameo933x/initramfs' uses wrong
parameters for 'MkuImageLzma/initramfs' due to a
misplaced commma. Remove that to fix the generated
initramfs images.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37871

target/linux/ar71xx/image/Makefile

@@ -386,7 +386,7 @@ define Image/Build/Cameo933x
 endef
 
 define Image/Build/Cameo933x/initramfs
-	$(call MkuImageLzma/initramfs,$(2),$(3),$(cameo933x_mtdlayout))
+	$(call MkuImageLzma/initramfs,$(2),$(3) $(cameo933x_mtdlayout))
 endef
 
 define Image/Build/Cameo933x_8M
@@ -816,6 +816,10 @@ define Image/Build/Template/squashfs-only/squashfs
 	$(call Image/Build/$(1),squashfs,$(2),$(3),$(4),$(5),$(6),$(7),$(8))
 endef
 
+define Image/Build/Template/squashfs-only/initramfs
+	$(call Image/Build/$(1)/initramfs,initramfs,$(2),$(3),$(4),$(5),$(6),$(7),$(8))
+endef
+
 define Image/Build/Template/64k/loader
 	$(call Image/Build/$(1)/loader,$(2),$(3),$(4),$(5),$(6),$(7),$(8))
 endef