drm/amdgpu: Fix the code style warnings in amdgpu_ras

Fix the code style warnings in amdgpu_ras:
1. ERROR: space required before the open parenthesis '('.
2. WARNING: line length of xxx exceeds 100 columns.
3. ERROR: "foo* bar" should be "foo *bar".
4. WARNING: unnecessary whitespace before a quoted newline.
5. WARNING: space prohibited before semicolon.
6. WARNING: suspect code indent for conditional statements.
7. WARNING: braces {} are not necessary for single statement blocks.

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>