Remove unnecessary firmware version check for gc v9_4_2

GC v9_4_2 uses a new versioning scheme for CP firmware, making
the warning ("CP firmware version too old, please update!") irrelevant.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -1269,6 +1269,7 @@ static void gfx_v9_0_check_fw_write_wait(struct amdgpu_device *adev)
 	adev->gfx.mec_fw_write_wait = false;
 
 	if ((amdgpu_ip_version(adev, GC_HWIP, 0) != IP_VERSION(9, 4, 1)) &&
+	    (amdgpu_ip_version(adev, GC_HWIP, 0) != IP_VERSION(9, 4, 2)) &&
 	    ((adev->gfx.mec_fw_version < 0x000001a5) ||
 	     (adev->gfx.mec_feature_version < 46) ||
 	     (adev->gfx.pfp_fw_version < 0x000000b7) ||