ARM: omap3_logic: Cleanup usage of MUX_VAL

The macro called MUX_VAL generates a writel instruction with
semicolon at the end.  This table was written to use semicolons,
however one was missed:

   MUX_VAL(CP(SYS_BOOT2),      (IEN  | PTD | DIS | M4))    /* GPIO_4 */

Since the extra semicolon is unnecessary with the use of the macro,
remove all of them, and cleanup whitespace.

Reviewed-by: Wolfgang Denk <wd@denx.de>
Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Adam Ford <aford173@gmail.com>