IB/hns: Support compile test for hns RoCE driver

Compiling the hns RoCE driver requires ARM architecture.
In order to simplify development of IB/core, support
compile test. Add the necessary includes for that too.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/hns/Kconfig

 config INFINIBAND_HNS
 	tristate "HNS RoCE Driver"
 	depends on NET_VENDOR_HISILICON
-	depends on ARM64 && HNS && HNS_DSAF && HNS_ENET
+	depends on (ARM64 || COMPILE_TEST) && HNS && HNS_DSAF && HNS_ENET
 	---help---
 	  This is a RoCE/RDMA driver for the Hisilicon RoCE engine. The engine
 	  is used in Hisilicon Hi1610 and more further ICT SoC.

drivers/infiniband/hw/hns/hns_roce_alloc.c

@@ -32,6 +32,7 @@
  */
 
 #include <linux/platform_device.h>
+#include <linux/vmalloc.h>
 #include "hns_roce_device.h"
 
 int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj)

drivers/infiniband/hw/hns/hns_roce_mr.c

@@ -32,6 +32,7 @@
  */
 
 #include <linux/platform_device.h>
+#include <linux/vmalloc.h>
 #include <rdma/ib_umem.h>
 #include "hns_roce_device.h"
 #include "hns_roce_cmd.h"