drm/amdgpu: drop drmP.h in gfx_v10_0.c

And fix the fallout.
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c

@@ -20,8 +20,12 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  *
  */
+
+#include <linux/delay.h>
+#include <linux/kernel.h>
 #include <linux/firmware.h>
-#include <drm/drmP.h>
+#include <linux/module.h>
+#include <linux/pci.h>
 #include "amdgpu.h"
 #include "amdgpu_gfx.h"
 #include "amdgpu_psp.h"
@@ -393,7 +397,7 @@ static int gfx_v10_0_ring_test_ring(struct amdgpu_ring *ring)
 		if (amdgpu_emu_mode == 1)
 			msleep(1);
 		else
-			DRM_UDELAY(1);
+			udelay(1);
 	}
 	if (i < adev->usec_timeout) {
 		if (amdgpu_emu_mode == 1)
@@ -4551,7 +4555,7 @@ static int gfx_v10_0_ring_preempt_ib(struct amdgpu_ring *ring)
 		if (ring->trail_seq ==
 		    le32_to_cpu(*(ring->trail_fence_cpu_addr)))
 			break;
-		DRM_UDELAY(1);
+		udelay(1);
 	}
 
 	if (i >= adev->usec_timeout) {