radv/android: Add android hardware buffer field to device memory.

You cannot go from BO to Android hardware buffer, so for export we
have to remember it.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

src/amd/vulkan/radv_device.c

 	if (mem == NULL)
 		return;
 
+#if RADV_SUPPORT_ANDROID_HARDWARE_BUFFER
+	if (mem->android_hardware_buffer)
+		AHardwareBuffer_release(mem->android_hardware_buffer);
+#endif
+
 	if (mem->bo) {
 		radv_bo_list_remove(device, mem->bo);
 		device->ws->buffer_destroy(mem->bo);
 	mem->user_ptr = NULL;
 	mem->bo = NULL;
 
+#if RADV_SUPPORT_ANDROID_HARDWARE_BUFFER
+	mem->android_hardware_buffer = NULL;
+#endif
+
 	if (import_info) {
 		assert(import_info->handleType ==
 		       VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT ||

src/amd/vulkan/radv_private.h

 	VkDeviceSize                                 map_size;
 	void *                                       map;
 	void *                                       user_ptr;
+
+#if RADV_SUPPORT_ANDROID_HARDWARE_BUFFER
+	struct AHardwareBuffer *                    android_hardware_buffer;
+#endif
 };