staging: gpib: Removing typedef for gpib_board

Removing typedef as per Linux code style.

Adhering to Linux code style.

In general, a pointer, or a struct that has elements that can reasonably be
directly accessed should never be a typedef.

Signed-off-by: Michael Rubin <matchstick@neverthere.org>
Acked-By: Dave Penkler <dpenkler@gmail.com>
Link: https://lore.kernel.org/r/20250319215924.19387-21-matchstick@neverthere.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: Michael Rubin

drivers/staging/gpib/include/gpib_types.h

@@ -23,7 +23,7 @@
 #include <linux/interrupt.h>
 
 typedef struct gpib_interface_struct gpib_interface_t;
-typedef struct gpib_board gpib_board_t;
+struct gpib_board;
 
 /* config parameters that are only used by driver attach functions */
 typedef struct {