soc: fsl: guts: remove unneeded semicolon

Eliminate the following coccicheck warning:
./drivers/soc/fsl/guts.c:120:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>