Add toolbox_recovery rules

Build special limited toolbox with SELinux tools for recovery

Change-Id: Ifc76a6bd0468a72081f15ede2a68adf48af8a0f2
diff --git a/Android.mk b/Android.mk
index 8fc99b2..bec425a 100644
--- a/Android.mk
+++ b/Android.mk
@@ -271,6 +271,10 @@
 # Create busybox symlinks... gzip and gunzip are excluded because those need to link to pigz instead
 BUSYBOX_LINKS := $(shell cat external/busybox/busybox-full.links)
 exclude := tune2fs mke2fs mkdosfs gzip gunzip
+ifeq ($(TWHAVE_SELINUX), true)
+	exclude += ls
+	# toolbox will provide ls support with ls -Z capability for listing SELinux contexts
+endif
 RECOVERY_BUSYBOX_SYMLINKS := $(addprefix $(TARGET_RECOVERY_ROOT_OUT)/sbin/,$(filter-out $(exclude),$(notdir $(BUSYBOX_LINKS))))
 $(RECOVERY_BUSYBOX_SYMLINKS): BUSYBOX_BINARY := busybox
 $(RECOVERY_BUSYBOX_SYMLINKS): $(LOCAL_INSTALLED_MODULE)
@@ -338,7 +342,8 @@
     $(commands_recovery_local_path)/libcrecovery/Android.mk \
     $(commands_recovery_local_path)/libblkid/Android.mk \
     $(commands_recovery_local_path)/minuitwrp/Android.mk \
-    $(commands_recovery_local_path)/openaes/Android.mk
+    $(commands_recovery_local_path)/openaes/Android.mk \
+    $(commands_recovery_local_path)/toolbox/Android.mk
 
 ifeq ($(TW_INCLUDE_CRYPTO_SAMSUNG), true)
     include $(commands_recovery_local_path)/crypto/libcrypt_samsung/Android.mk