Introduce new UI_MODE_TYPE_VR_HEADSET and qualifier.

Bug: 30989383
Test: Unit test for aapt2
Change-Id: I66dc65af6327b94fed74538bee08cada0b8be4fa
diff --git a/tools/aapt/SdkConstants.h b/tools/aapt/SdkConstants.h
index 16e622a..d92de06 100644
--- a/tools/aapt/SdkConstants.h
+++ b/tools/aapt/SdkConstants.h
@@ -39,6 +39,9 @@
     SDK_LOLLIPOP = 21,
     SDK_LOLLIPOP_MR1 = 22,
     SDK_MNC = 23,
+    SDK_NOUGAT = 24,
+    SDK_NOUGAT_MR1 = 25,
+    SDK_O = 26, // STOPSHIP replace with real version
 };
 
 #endif // H_AAPT_SDK_CONSTANTS