Camera: fix various VTS issues

Also fix wrong return values for processCaptureRequest in default
wrapper.

Test: running camera VTS
Bug: 64041692
Change-Id: I397390af7c85a776713f6287bef1c4d11c721c9a
Merged-In: I397390af7c85a776713f6287bef1c4d11c721c9a
diff --git a/camera/device/3.2/default/CameraDeviceSession.h b/camera/device/3.2/default/CameraDeviceSession.h
index fb3fc02..2fe189f 100644
--- a/camera/device/3.2/default/CameraDeviceSession.h
+++ b/camera/device/3.2/default/CameraDeviceSession.h
@@ -148,6 +148,7 @@
     static HandleImporter sHandleImporter;
 
     bool mInitFail;
+    bool mFirstRequest = false;
 
     common::V1_0::helper::CameraMetadata mDeviceInfo;