Change health plugin name to bluetooth-health.

This makes it easier to decipher in the PRODUCT_PACKAGE
section of build files.

Change-Id: Iee1860fd350a17a77f57d30647f54f3ff3833284
diff --git a/health/Android.mk b/health/Android.mk
index 3923dbe..d46a903 100644
--- a/health/Android.mk
+++ b/health/Android.mk
@@ -35,7 +35,7 @@
 
 LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/bluez-plugin
 LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_SHARED_LIBRARIES_UNSTRIPPED)/bluez-plugin
-LOCAL_MODULE := health
+LOCAL_MODULE := bluetooth-health
 LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_SHARED_LIBRARY)