drm/amdgpu/amdgpu: improve code indentation and alignment

General code indentation and alignment changes such as replace spaces
by tabs or align function arguments as per the coding style
guidelines. The patch corrects issues for various amdgpu_*.c files
for this driver. Issue reported by checkpatch script.
Signed-off-by: NDeepak R Varma <mh12gx2825@gmail.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c

@@ -865,7 +865,7 @@ static ssize_t amdgpu_debugfs_wave_read(struct file *f, char __user *buf,
 {
 	struct amdgpu_device *adev = f->f_inode->i_private;
 	int r, x;
-	ssize_t result=0;
+	ssize_t result = 0;
 	uint32_t offset, se, sh, cu, wave, simd, data[32];
 
 	if (size & 3 || *pos & 3)