fpga: bridge: kernel-doc fixes

Fix the following warnings when documentation is built:

./drivers/fpga/fpga-bridge.c:143: warning: Function parameter or
member 'info' not described in 'fpga_bridge_get'

./drivers/fpga/fpga-bridge.c:1: warning: no structured comments found
Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/fpga/fpga-bridge.c

@@ -121,6 +121,7 @@ static int fpga_bridge_dev_match(struct device *dev, const void *data)
 /**
  * fpga_bridge_get - get an exclusive reference to a fpga bridge
  * @dev:	parent device that fpga bridge was registered with
+ * @info:	fpga manager info
  *
  * Given a device, get an exclusive reference to a fpga bridge.
  *