drm/amd/powerplay/smu7_hwmgr: replace blocking delay with non-blocking

This driver currently contains a repeated 500ms blocking delay call
which causes frequent major buffer underruns in PulseAudio. This patch
fixes this issue by replacing the blocking delay with a non-blocking
sleep call.
Signed-off-by: Yrjan Skrimstad <yrjan@skrimstad.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -3495,7 +3495,7 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr, u32 *query)
 							ixSMU_PM_STATUS_95, 0);
 
 	for (i = 0; i < 10; i++) {
-		mdelay(500);
+		msleep(500);
 		smum_send_msg_to_smc(hwmgr, PPSMC_MSG_PmStatusLogSample);
 		tmp = cgs_read_ind_register(hwmgr->device,
 						CGS_IND_REG__SMC,