drm/lima: add resume/suspend callback for each ip

For called when PM do resume/suspend.

Tested-by: Bhushan Shah <bshah@kde.org>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-8-yuq825@gmail.com

drivers/gpu/drm/lima/lima_device.h

@@ -64,7 +64,7 @@ struct lima_ip {
 		bool async_reset;
 		/* l2 cache */
 		spinlock_t lock;
-		/* pmu */
+		/* pmu/bcast */
 		u32 mask;
 	} data;
 };