radv: it isn't an error to not support a format or driver

This reverts two of the vk_error changes:

reporting unsupported format is common,
and testing non-amdgpu drivers and ignoring them is also common.

Fixes: cd64a4f70 (radv: use vk_error() everywhere an error is returned)
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

src/amd/vulkan/radv_device.c

@@ -196,7 +196,7 @@ radv_physical_device_init(struct radv_physical_device *device,
 	if (strcmp(version->name, "amdgpu")) {
 		drmFreeVersion(version);
 		close(fd);
-		return vk_error(VK_ERROR_INCOMPATIBLE_DRIVER);
+		return VK_ERROR_INCOMPATIBLE_DRIVER;
 	}
 	drmFreeVersion(version);
 

src/amd/vulkan/radv_formats.c

@@ -1144,7 +1144,7 @@ unsupported:
 		.maxResourceSize = 0,
 	};
 
-	return vk_error(VK_ERROR_FORMAT_NOT_SUPPORTED);
+	return VK_ERROR_FORMAT_NOT_SUPPORTED;
 }
 
 VkResult radv_GetPhysicalDeviceImageFormatProperties(