Host builds: add fastboot and adb

Add fastboot and adb host utilities to debug builds for debugging
and development purposes.

Change-Id: If77699a27497b8641998930f14d4ee418b856080
diff --git a/adb/Android.mk b/adb/Android.mk
index bc8315e..d6b0146 100644
--- a/adb/Android.mk
+++ b/adb/Android.mk
@@ -77,6 +77,7 @@
 LOCAL_CFLAGS += -O2 -g -DADB_HOST=1  -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
 LOCAL_MODULE := adb
+LOCAL_MODULE_TAGS := debug
 
 LOCAL_STATIC_LIBRARIES := libzipfile libunz libcrypto_static $(EXTRA_STATIC_LIBS)
 ifeq ($(USE_SYSDEPS_WIN32),)