msm: kgsl: Send HFI test message during HFI start

To enable the IFPC feature, a test HFI must be sent
as the last HFI message during HFI start.

CRs-Fixed: 2085877
Change-Id: I22080b643d0176c95fa684fb5bd94234fcc3aacf
Signed-off-by: Kyle Piefer <kpiefer@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_hfi.h b/drivers/gpu/msm/kgsl_hfi.h
index 47d07d9..191987e 100644
--- a/drivers/gpu/msm/kgsl_hfi.h
+++ b/drivers/gpu/msm/kgsl_hfi.h
@@ -228,6 +228,10 @@
 	uint32_t ddr_cmd_data[MAX_GX_LEVELS][MAX_BW_CMDS];
 };
 
+struct hfi_test_cmd {
+	struct hfi_msg_hdr hdr;
+};
+
 struct arc_vote_desc {
 	/* In case of GPU freq vote, primary is GX, secondary is MX
 	 * in case of GMU freq vote, primary is CX, secondary is MX