drm/amd/powerplay: add the smu manager for vega12 (v4)

handles the driver interaction with the smu firmware

v2: squash in:
- s3 fix for firmware loading
- smu loading through the psp
- unecessary calls to is_smc_ram_running()
- smu table cleanups
v3: rebase
v4: rebase, smu bo allocation fixes, add dpm running callback

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/smumgr/Makefile

@@ -25,7 +25,8 @@
 
 SMU_MGR = smumgr.o smu8_smumgr.o tonga_smumgr.o fiji_smumgr.o \
 	  polaris10_smumgr.o iceland_smumgr.o \
-	  smu7_smumgr.o vega10_smumgr.o smu10_smumgr.o ci_smumgr.o
+	  smu7_smumgr.o vega10_smumgr.o smu10_smumgr.o ci_smumgr.o \
+	  vega12_smumgr.o
 
 AMD_PP_SMUMGR = $(addprefix $(AMD_PP_PATH)/smumgr/,$(SMU_MGR))