Add support for msm8974 and msm8226 targets

Adding support for msm8974 and msm8226 targets to make Qualcomm patch
integration easier.

Change-Id: Id3196c8c314ee1174580b22b11fc4068b0421504
diff --git a/Android.mk b/Android.mk
index 5230e2c..ef68c63 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,4 +1,4 @@
-ifneq ($(filter msm8960 msm8x26 msm8x74,$(TARGET_BOARD_PLATFORM)),)
+ifneq ($(filter msm8960 msm8226 msm8x26 msm8974 msm8x74,$(TARGET_BOARD_PLATFORM)),)
 
 LOCAL_PATH := $(call my-dir)