Standalone recovery kernel build

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

shbootimg.mk

@@ -17,6 +17,7 @@
 LOCAL_PATH := $(call my-dir)
 
 INSTALLED_BOOTIMAGE_TARGET := $(PRODUCT_OUT)/boot.img
+INSTALLED_RECOVERYIMAGE_TARGET := $(PRODUCT_OUT)/recovery.img
 
 uncompressed_ramdisk := $(PRODUCT_OUT)/ramdisk.cpio
 $(uncompressed_ramdisk): $(INSTALLED_RAMDISK_TARGET)
@@ -30,5 +31,5 @@ TARGET_KERNEL_BINARIES: $(KERNEL_OUT) $(KERNEL_CONFIG) $(KERNEL_HEADERS_INSTALL)
 $(INSTALLED_BOOTIMAGE_TARGET): $(INSTALLED_KERNEL_TARGET)
 	$(ACP) -fp $< $@
 
-$(INSTALLED_RECOVERYIMAGE_TARGET): $(recovery_uncompressed_ramdisk)
-	lzop -f9 -o $@ $<
+$(INSTALLED_RECOVERYIMAGE_TARGET): $(INSTALLED_RECOVERY_KERNEL_TARGET)
+	$(ACP) -fp $< $@