Don't build from source for grouper

Bug: 6337189
Change-Id: I20fcf280fe2247318656138610c981bcc2e0b163
diff --git a/mlsdk/Android.mk b/mlsdk/Android.mk
index 30b9104..41b1457 100644
--- a/mlsdk/Android.mk
+++ b/mlsdk/Android.mk
@@ -1,5 +1,7 @@
 LOCAL_PATH := $(call my-dir)
 
+ifneq ($(BOARD_USES_GENERIC_INVENSENSE),false)
+
 include $(CLEAR_VARS)
 LOCAL_MODULE_TAGS := optional
 
@@ -99,3 +101,4 @@
 #include $(BUILD_SHARED_LIBRARY)
 #include $(BUILD_MULTI_PREBUILT)
 
+endif