dma-buf: align fd_flags and heap_flags with dma_heap_allocation_data

dma_heap_allocation_data defines the UAPI as follows:

struct dma_heap_allocation_data {
__u64 len;
__u32 fd;
__u32 fd_flags;
__u64 heap_flags;
};

However, dma_heap_buffer_alloc() casts both fd_flags and heap_flags
into unsigned int. We're inconsistent with types in the non UAPI
arguments. This patch fixes it.

Signed-off-by: Barry Song <[e-mail]>
Acked-by: John Stultz <[e-mail]>
Signed-off-by: Sumit Semwal <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/dma-buf/dma-heap.c

···
 static DEFINE_XARRAY_ALLOC(dma_heap_minors);
 
 static int dma_heap_buffer_alloc(struct dma_heap *heap, size_t len,
-				 unsigned int fd_flags,
-				 unsigned int heap_flags)
+				 u32 fd_flags,
+				 u64 heap_flags)
 {
 	struct dma_buf *dmabuf;
 	int fd;

include/uapi/linux/dma-heap.h

···
 #define DMA_HEAP_VALID_FD_FLAGS (O_CLOEXEC | O_ACCMODE)
 
 /* Currently no heap flags */
-#define DMA_HEAP_VALID_HEAP_FLAGS (0)
+#define DMA_HEAP_VALID_HEAP_FLAGS (0ULL)
 
 /**
  * struct dma_heap_allocation_data - metadata passed from userspace for