drm/amdgpu/pm: Remove redundant generic message index

Remove SMU_MSG_GfxDriverReset generic index.
Always use SMU_MSG_GfxDeviceDriverReset as the generic index for reset.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/inc/smu_types.h

@@ -184,7 +184,6 @@
 	__SMU_DUMMY_MAP(GET_UMC_FW_WA), \
 	__SMU_DUMMY_MAP(Mode1Reset), \
 	__SMU_DUMMY_MAP(RlcPowerNotify),                 \
-	__SMU_DUMMY_MAP(GfxDriverReset), \
 	__SMU_DUMMY_MAP(SetHardMinIspiclkByFreq),        \
 	__SMU_DUMMY_MAP(SetHardMinIspxclkByFreq),        \
 	__SMU_DUMMY_MAP(SetSoftMinSocclkByFreq),         \