drm/amdgpu: Fix the code style warnings in hdp xgmi mca and umc

drm/amdgpu: Fix the code style warnings in hdp xgmi mca and umc:
1. WARNING: missing space after struct definition.
2. WARNING: please, no space before tabs.
3. WARNING: line length of xxx exceeds 100 columns.
4. ERROR: "foo* bar" should be "foo *bar".
5. ERROR: space required before the open parenthesis '('.
6. ERROR: space prohibited after that open parenthesis '('.

Signed-off-by: yipechai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>