staging: android: ion: Collapse internal header files

Ion current has ion_priv.h and ion.h as header files. ion.h was intended
to be used for public APIs but Ion never ended up really having anything
public. Combine the two headers so there is only one internal header.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/android/ion/ion-ioctl.c

@@ -19,7 +19,6 @@
 #include <linux/uaccess.h>
 
 #include "ion.h"
-#include "ion_priv.h"
 
 union ion_ioctl_arg {
 	struct ion_fd_data fd;

drivers/staging/android/ion/ion.c

@@ -39,7 +39,6 @@
 #include <linux/sched/task.h>
 
 #include "ion.h"
-#include "ion_priv.h"
 
 bool ion_buffer_cached(struct ion_buffer *buffer)
 {

drivers/staging/android/ion/ion_carveout_heap.c

@@ -23,7 +23,6 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include "ion.h"
-#include "ion_priv.h"
 
 #define ION_CARVEOUT_ALLOCATE_FAIL	-1
 

drivers/staging/android/ion/ion_chunk_heap.c

@@ -22,7 +22,6 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include "ion.h"
-#include "ion_priv.h"
 
 struct ion_chunk_heap {
 	struct ion_heap heap;

drivers/staging/android/ion/ion_cma_heap.c

@@ -23,7 +23,6 @@
 #include <linux/scatterlist.h>
 
 #include "ion.h"
-#include "ion_priv.h"
 
 struct ion_cma_heap {
 	struct ion_heap heap;

drivers/staging/android/ion/ion_heap.c

@@ -24,7 +24,6 @@
 #include <linux/scatterlist.h>
 #include <linux/vmalloc.h>
 #include "ion.h"
-#include "ion_priv.h"
 
 void *ion_heap_map_kernel(struct ion_heap *heap,
 			  struct ion_buffer *buffer)

drivers/staging/android/ion/ion_page_pool.c

@@ -22,7 +22,8 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/swap.h>
-#include "ion_priv.h"
+
+#include "ion.h"
 
 static void *ion_page_pool_alloc_pages(struct ion_page_pool *pool)
 {

drivers/staging/android/ion/ion_system_heap.c

@@ -24,7 +24,6 @@
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include "ion.h"
-#include "ion_priv.h"
 
 #define NUM_ORDERS ARRAY_SIZE(orders)