drm/amd/display: use GFP_NOWAIT for allocation in interrupt handler

schedule_dc_vmin_vmax() is called by dm_crtc_high_irq(). Hence, we
cannot have the former sleep. Use GFP_NOWAIT for allocation in this
function.

Fixes: c210b757b400 ("drm/amd/display: fix dmub access race condition")
Cc: Mario Limonciello <[e-mail]>
Cc: Alex Deucher <[e-mail]>
Reviewed-by: Sun peng (Leo) Li <[e-mail]>
Signed-off-by: Aurabindo Pillai <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>
(cherry picked from commit c04812cbe2f247a1c1e53a9b6c5e659963fe4065)
Cc: [e-mail]

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

···
 	struct dc_stream_state *stream,
 	struct dc_crtc_timing_adjust *adjust)
 {
-	struct vupdate_offload_work *offload_work = kzalloc(sizeof(*offload_work), GFP_KERNEL);
+	struct vupdate_offload_work *offload_work = kzalloc(sizeof(*offload_work), GFP_NOWAIT);
 	if (!offload_work) {
 		drm_dbg_driver(adev_to_drm(adev), "Failed to allocate vupdate_offload_work\n");
 		return;
 	}
 
-	struct dc_crtc_timing_adjust *adjust_copy = kzalloc(sizeof(*adjust_copy), GFP_KERNEL);
+	struct dc_crtc_timing_adjust *adjust_copy = kzalloc(sizeof(*adjust_copy), GFP_NOWAIT);
 	if (!adjust_copy) {
 		drm_dbg_driver(adev_to_drm(adev), "Failed to allocate adjust_copy\n");
 		kfree(offload_work);