platform/x86: ISST: Fix typo in comments

Fix spelling typo in comments.
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: chen zhang <chenzhang@kylinos.cn>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20221103013313.13278-1-chenzhang@kylinos.cnSigned-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/intel/speed_select_if/isst_if_common.c

@@ -623,7 +623,7 @@ static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
 
 /* Lock to prevent module registration when already opened by user space */
 static DEFINE_MUTEX(punit_misc_dev_open_lock);
-/* Lock to allow one share misc device for all ISST interace */
+/* Lock to allow one shared misc device for all ISST interfaces */
 static DEFINE_MUTEX(punit_misc_dev_reg_lock);
 static int misc_usage_count;
 static int misc_device_ret;