drm/amd/pm: Clean up errors in vega20_hwmgr.h

Fix the following errors reported by checkpatch:

ERROR: open brace '{' following enum go on the same line
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Ran Sun <sunran001@208suo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega20_hwmgr.h

@@ -385,8 +385,7 @@ struct vega20_odn_data {
 	struct vega20_odn_temp_table	odn_temp_table;
 };
 
-enum OD8_FEATURE_ID
-{
+enum OD8_FEATURE_ID {
 	OD8_GFXCLK_LIMITS               = 1 << 0,
 	OD8_GFXCLK_CURVE                = 1 << 1,
 	OD8_UCLK_MAX                    = 1 << 2,
@@ -399,8 +398,7 @@ enum OD8_FEATURE_ID
 	OD8_FAN_ZERO_RPM_CONTROL        = 1 << 9
 };
 
-enum OD8_SETTING_ID
-{
+enum OD8_SETTING_ID {
 	OD8_SETTING_GFXCLK_FMIN = 0,
 	OD8_SETTING_GFXCLK_FMAX,
 	OD8_SETTING_GFXCLK_FREQ1,