fpga: Check device name against bitstream name

Ensure that wrong bitstream won't be loaded
to current device.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index 244f503..f70bff6 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -72,8 +72,8 @@
  * fpga_validate
  *	generic parameter checking code
  */
-static const fpga_desc *const fpga_validate(int devnum, const void *buf,
-					 size_t bsize, char *fn)
+const fpga_desc *const fpga_validate(int devnum, const void *buf,
+				     size_t bsize, char *fn)
 {
 	const fpga_desc *desc = fpga_get_desc(devnum);