libfmjni: Implement hal layer

Implement HAL layer that can be plugged in
with Android FM APP to get fm functionalities.

Change-Id: Id16d37a320fdbacb505ba7ecc431622db17bd4d7
diff --git a/Android.mk b/Android.mk
index 39d9305..027bddf 100644
--- a/Android.mk
+++ b/Android.mk
@@ -20,6 +20,8 @@
 include $(LOCAL_PATH)/fmapp2/Android.mk
 LOCAL_PATH := $(LOCAL_DIR_PATH)
 include $(LOCAL_PATH)/FMRecord/Android.mk
+LOCAL_PATH := $(LOCAL_DIR_PATH)
+include $(LOCAL_PATH)/libfm_jni/Android.mk
 endif # is-vendor-board-platform
 endif # BOARD_HAVE_QCOM_FM