brcm2708: copy overlays README to boot partition

Signed-off-by: Álvaro Fernández Rojas <[email protected]>

SVN-Revision: 47260

target/linux/brcm2708/image/Makefile

@@ -43,6 +43,7 @@ define Build/boot-img
 	mcopy -i [email protected] $(DTS_DIR)/$(DEVICE_DTS).dtb ::$(DEVICE_DTS).dtb
 	mmd -i [email protected] ::/overlays
 	mcopy -i [email protected] $(DTS_DIR)/overlays/*.dtb ::/overlays/
+	mcopy -i [email protected] $(DTS_DIR)/overlays/README ::/overlays/
 endef
 
 define Build/sdcard-img