drm/scheduler: drop use of drmP.h

Drop use of the deprecated drmP.h header file.
Fix fallout.

Signed-off-by: Sam Ravnborg <[e-mail]>
Reviewed-by: Christian König <[e-mail]>
Acked-by: Emil Velikov <[e-mail]>
Cc: David Airlie <[e-mail]>
Cc: Daniel Vetter <[e-mail]>
Cc: Alex Deucher <[e-mail]>
Cc: Andrey Grodzovsky <[e-mail]>
Cc: Huang Rui <[e-mail]>
Cc: Eric Anholt <[e-mail]>
Cc: Bas Nieuwenhuizen <[e-mail]>
Cc: Sharat Masetty <[e-mail]>
Cc: Nathan Chancellor <[e-mail]>
Cc: Nayan Deshmukh <[e-mail]>
Cc: Sam Ravnborg <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/scheduler/gpu_scheduler_trace.h

···
 #include <linux/types.h>
 #include <linux/tracepoint.h>
 
-#include <drm/drmP.h>
-
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM gpu_scheduler
 #define TRACE_INCLUDE_FILE gpu_scheduler_trace

drivers/gpu/drm/scheduler/sched_entity.c

···
  */
 
 #include <linux/kthread.h>
+#include <linux/slab.h>
+
+#include <drm/drm_print.h>
 #include <drm/gpu_scheduler.h>
 
 #include "gpu_scheduler_trace.h"

drivers/gpu/drm/scheduler/sched_fence.c

···
  */
 
 #include <linux/kthread.h>
-#include <linux/wait.h>
+#include <linux/module.h>
 #include <linux/sched.h>
-#include <drm/drmP.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+
 #include <drm/gpu_scheduler.h>
 
 static struct kmem_cache *sched_fence_slab;

drivers/gpu/drm/scheduler/sched_main.c

···
 #include <linux/wait.h>
 #include <linux/sched.h>
 #include <uapi/linux/sched/types.h>
-#include <drm/drmP.h>
+
+#include <drm/drm_print.h>
 #include <drm/gpu_scheduler.h>
 #include <drm/spsc_queue.h>