drm/amd/display: Clean up some inconsistent indenting

No functional modification involved.

smatch warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_hwseq.c:1728 dcn20_program_front_end_for_ctx() warn: inconsistent indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

@@ -1718,12 +1718,10 @@ void dcn20_program_front_end_for_ctx(
 	/* Carry over GSL groups in case the context is changing. */
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *pipe_ctx = &context->res_ctx.pipe_ctx[i];
-               struct pipe_ctx *old_pipe_ctx =
-                       &dc->current_state->res_ctx.pipe_ctx[i];
+		struct pipe_ctx *old_pipe_ctx = &dc->current_state->res_ctx.pipe_ctx[i];
 
 		if (pipe_ctx->stream == old_pipe_ctx->stream)
-                       pipe_ctx->stream_res.gsl_group =
-                               old_pipe_ctx->stream_res.gsl_group;
+			pipe_ctx->stream_res.gsl_group = old_pipe_ctx->stream_res.gsl_group;
 	}
 
 	if (dc->hwss.program_triplebuffer != NULL && dc->debug.enable_tri_buf) {