msm: kgsl: Add a constant for adreno_ringbuffer_issuecmds flags

Use a #define constant instead of a bare constant for the flags
parameter of adreno_ringbuffer_issuecmds.

Change-Id: Ic0dedbadecabe396a51201859a444e68ba64c53d
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
diff --git a/drivers/gpu/msm/adreno.h b/drivers/gpu/msm/adreno.h
index 4376ebe..bdba624 100644
--- a/drivers/gpu/msm/adreno.h
+++ b/drivers/gpu/msm/adreno.h
@@ -24,6 +24,7 @@
 		KGSL_CONTAINER_OF(device, struct adreno_device, dev)
 
 /* Flags to control command packet settings */
+#define KGSL_CMD_FLAGS_NONE             0x00000000
 #define KGSL_CMD_FLAGS_PMODE		0x00000001
 #define KGSL_CMD_FLAGS_NO_TS_CMP	0x00000002
 #define KGSL_CMD_FLAGS_NOT_KERNEL_CMD	0x00000004