drm/ttm: move ttm_set_memory.h out of include

This is not something drivers should use.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patchwork.freedesktop.org/patch/393430/

drivers/gpu/drm/ttm/ttm_page_alloc.c

@@ -47,7 +47,8 @@
 
 #include <drm/ttm/ttm_bo_driver.h>
 #include <drm/ttm/ttm_page_alloc.h>
-#include <drm/ttm/ttm_set_memory.h>
+
+#include "ttm_set_memory.h"
 
 #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
 #define SMALL_ALLOCATION		16

drivers/gpu/drm/ttm/ttm_page_alloc_dma.c

@@ -49,7 +49,8 @@
 #include <linux/kthread.h>
 #include <drm/ttm/ttm_bo_driver.h>
 #include <drm/ttm/ttm_page_alloc.h>
-#include <drm/ttm/ttm_set_memory.h>
+
+#include "ttm_set_memory.h"
 
 #define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
 #define SMALL_ALLOCATION		4