drm: bridge: cdns-mhdp8546: Fix inconsistent indenting

Eliminate the follow smatch warning:

drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:2143
cdns_mhdp_bridge_atomic_reset() warn: inconsistent indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1621852953-51325-1-git-send-email-jiapeng.chong@linux.alibaba.com

drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c

@@ -2140,7 +2140,7 @@ cdns_mhdp_bridge_atomic_reset(struct drm_bridge *bridge)
 	if (!cdns_mhdp_state)
 		return NULL;
 
-	 __drm_atomic_helper_bridge_reset(bridge, &cdns_mhdp_state->base);
+	__drm_atomic_helper_bridge_reset(bridge, &cdns_mhdp_state->base);
 
 	return &cdns_mhdp_state->base;
 }