HID: i2c-hid: remove unneeded semicolon

Eliminate the following coccicheck warning:
./drivers/hid/i2c-hid/i2c-hid-core.c:357:56-57: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>