msm: kgsl: add a kgsl_readtimestamp() wrapper

Calling this device function directly from the function
table is unnecessarily verbose, and done fairly often.

Change-Id: Ib9d75b31dfab8fb4ccced46fe62a08a98da8c94f
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_device.h b/drivers/gpu/msm/kgsl_device.h
index 5b6522a..5b2fd31 100644
--- a/drivers/gpu/msm/kgsl_device.h
+++ b/drivers/gpu/msm/kgsl_device.h
@@ -294,6 +294,13 @@
 	return device->ftbl->gpuid(device);
 }
 
+static inline unsigned int kgsl_readtimestamp(struct kgsl_device *device,
+					      struct kgsl_context *context,
+					      enum kgsl_timestamp_type type)
+{
+	return device->ftbl->readtimestamp(device, context, type);
+}
+
 static inline int kgsl_create_device_sysfs_files(struct device *root,
 	const struct device_attribute **list)
 {