CameraITS: add raw12 test

Bug: 20494692
Change-Id: I53b095a7d7df42253549648102a2008d51f39217
diff --git a/apps/CameraITS/pymodules/its/caps.py b/apps/CameraITS/pymodules/its/caps.py
index b97091b..e57ff88 100644
--- a/apps/CameraITS/pymodules/its/caps.py
+++ b/apps/CameraITS/pymodules/its/caps.py
@@ -133,6 +133,17 @@
     """
     return len(its.objects.get_available_output_sizes("raw10", props)) > 0
 
+def raw12(props):
+    """Returns whether a device supports RAW12 output.
+
+    Args:
+        props: Camera properties object.
+
+    Returns:
+        Boolean.
+    """
+    return len(its.objects.get_available_output_sizes("raw12", props)) > 0
+
 def sensor_fusion(props):
     """Returns whether the camera and motion sensor timestamps for the device
     are in the same time domain and can be compared directly.