amdgpu: add flags parameter for amdgpu_va_range_alloc

The flags is added for extensibility to cover some special requirements
in the future, i.e, request VA range in the first 4GB of address space

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
diff --git a/amdgpu/amdgpu_vamgr.c b/amdgpu/amdgpu_vamgr.c
index d6ec9b4..ced4f4f 100644
--- a/amdgpu/amdgpu_vamgr.c
+++ b/amdgpu/amdgpu_vamgr.c
@@ -242,7 +242,8 @@
 			  uint64_t va_base_alignment,
 			  uint64_t va_base_required,
 			  uint64_t *va_base_allocated,
-			  amdgpu_va_handle *va_range_handle)
+			  amdgpu_va_handle *va_range_handle,
+			  uint64_t flags)
 {
 	va_base_alignment = MAX2(va_base_alignment, dev->vamgr->va_alignment);
 	size = ALIGN(size, vamgr.va_alignment);