staging: fix typos "couter" -> "counter"

This patch was generated by

        git grep -l 'couter' drivers/staging | xargs -r perl -p -i -e 's/couter/counter/'
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/comedi/drivers/adl_pci9118.c

@@ -88,9 +88,9 @@ Configuration options:
 #define IORANGE_9118 	64	/* I hope */
 #define PCI9118_CHANLEN	255	/* len of chanlist, some source say 256, but reality looks like 255 :-( */
 
-#define PCI9118_CNT0	0x00	/* R/W: 8254 couter 0 */
-#define PCI9118_CNT1	0x04	/* R/W: 8254 couter 0 */
-#define PCI9118_CNT2	0x08	/* R/W: 8254 couter 0 */
+#define PCI9118_CNT0	0x00	/* R/W: 8254 counter 0 */
+#define PCI9118_CNT1	0x04	/* R/W: 8254 counter 0 */
+#define PCI9118_CNT2	0x08	/* R/W: 8254 counter 0 */
 #define PCI9118_CNTCTRL	0x0c	/* W:   8254 counter control */
 #define PCI9118_AD_DATA	0x10	/* R:   A/D data */
 #define PCI9118_DA1	0x10	/* W:   D/A registers */

drivers/staging/comedi/drivers/adv_pci1710.c

@@ -84,9 +84,9 @@ Configuration options:
 #define PCI171x_DAREF	14	/* W:   D/A reference control */
 #define PCI171x_DI	16	/* R:   digi inputs */
 #define PCI171x_DO	16	/* R:   digi inputs */
-#define PCI171x_CNT0	24	/* R/W: 8254 couter 0 */
-#define PCI171x_CNT1	26	/* R/W: 8254 couter 1 */
-#define PCI171x_CNT2	28	/* R/W: 8254 couter 2 */
+#define PCI171x_CNT0	24	/* R/W: 8254 counter 0 */
+#define PCI171x_CNT1	26	/* R/W: 8254 counter 1 */
+#define PCI171x_CNT2	28	/* R/W: 8254 counter 2 */
 #define PCI171x_CNTCTRL	30	/* W:   8254 counter control */
 
 /* upper bits from status register (PCI171x_STATUS) (lower is same woth control reg) */