drm/amd/powerplay: fix compile warning for wrong data type V2

do_div expects the 1st argument in 64bit instead of 32bit.
Drop the usage of do_div as it seems unnecessary.

V2: drop usage of do_div completely
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/hwmgr/vega20_hwmgr.c

@@ -1195,7 +1195,7 @@ static int vega20_set_sclk_od(
 	int ret = 0;
 
 	od_sclk = golden_sclk_table->dpm_levels[golden_sclk_table->count - 1].value * value;
-	do_div(od_sclk, 100);
+	od_sclk /= 100;
 	od_sclk += golden_sclk_table->dpm_levels[golden_sclk_table->count - 1].value;
 
 	ret = vega20_od8_set_settings(hwmgr, OD8_SETTING_GFXCLK_FMAX, od_sclk);
@@ -1242,7 +1242,7 @@ static int vega20_set_mclk_od(
 	int ret = 0;
 
 	od_mclk = golden_mclk_table->dpm_levels[golden_mclk_table->count - 1].value * value;
-	do_div(od_mclk, 100);
+	od_mclk /= 100;
 	od_mclk += golden_mclk_table->dpm_levels[golden_mclk_table->count - 1].value;
 
 	ret = vega20_od8_set_settings(hwmgr, OD8_SETTING_UCLK_FMAX, od_mclk);