drm/amd: Drop dev_fmt prefix
The `amdgpu:` prefix in dev_fmt() isn't needed because the core
already includes the driver in the print.
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by