disable build in PDK

bug: 26722030
Change-Id: If561ae60aa88715c63ced630bda93f4ee9a86725
diff --git a/Android.mk b/Android.mk
index 9234fe4..5fdc41b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -12,6 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+#disable build in PDK
+ifneq ($(TARGET_BUILD_PDK),true)
+
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
@@ -132,3 +135,5 @@
 
 
 include $(BUILD_SHARED_LIBRARY)
+
+endif #TARGET_BUILD_PDK