drm/amd/pm/smu7: move variables to where they are used

Move variable declarations to where they are used.  Fixes
a segfault on smu7 V0 structures where some tables don't
exist.

Cc: Evan Quan <evan.quan@amd.com>
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2388
Fixes: b1a9557a ("drm/amd/pm: fulfill powerplay peak profiling mode shader/memory clock settings")
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu7_hwmgr.c

@@ -1504,12 +1504,6 @@ static void smu7_populate_umdpstate_clocks(struct pp_hwmgr *hwmgr)
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 	struct smu7_dpm_table *golden_dpm_table = &data->golden_dpm_table;
-	struct phm_clock_voltage_dependency_table *vddc_dependency_on_sclk =
-			hwmgr->dyn_state.vddc_dependency_on_sclk;
-	struct phm_ppt_v1_information *table_info =
-			(struct phm_ppt_v1_information *)(hwmgr->pptable);
-	struct phm_ppt_v1_clock_voltage_dependency_table *vdd_dep_on_sclk =
-			table_info->vdd_dep_on_sclk;
 	int32_t tmp_sclk, count, percentage;
 
 	if (golden_dpm_table->mclk_table.count == 1) {
@@ -1524,6 +1518,9 @@ static void smu7_populate_umdpstate_clocks(struct pp_hwmgr *hwmgr)
 	tmp_sclk = hwmgr->pstate_mclk * percentage / 100;
 
 	if (hwmgr->pp_table_version == PP_TABLE_V0) {
+		struct phm_clock_voltage_dependency_table *vddc_dependency_on_sclk =
+			hwmgr->dyn_state.vddc_dependency_on_sclk;
+
 		for (count = vddc_dependency_on_sclk->count - 1; count >= 0; count--) {
 			if (tmp_sclk >= vddc_dependency_on_sclk->entries[count].clk) {
 				hwmgr->pstate_sclk = vddc_dependency_on_sclk->entries[count].clk;
@@ -1536,6 +1533,11 @@ static void smu7_populate_umdpstate_clocks(struct pp_hwmgr *hwmgr)
 		hwmgr->pstate_sclk_peak =
 			vddc_dependency_on_sclk->entries[vddc_dependency_on_sclk->count - 1].clk;
 	} else if (hwmgr->pp_table_version == PP_TABLE_V1) {
+		struct phm_ppt_v1_information *table_info =
+			(struct phm_ppt_v1_information *)(hwmgr->pptable);
+		struct phm_ppt_v1_clock_voltage_dependency_table *vdd_dep_on_sclk =
+			table_info->vdd_dep_on_sclk;
+
 		for (count = vdd_dep_on_sclk->count - 1; count >= 0; count--) {
 			if (tmp_sclk >= vdd_dep_on_sclk->entries[count].clk) {
 				hwmgr->pstate_sclk = vdd_dep_on_sclk->entries[count].clk;