Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index c04abc3..be08ff9 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -331,7 +331,7 @@
 
 	if (adev->dma_mode < XFER_UDMA_0) {
 		/* bits 3-0 hold recovery timing bits 8-10 active timing and
-		   the higher bits are dependant on the device */
+		   the higher bits are dependent on the device */
 		timing &= ~0x870F;
 		timing |= mwdma_bits[speed];
 	} else {
@@ -371,7 +371,7 @@
 
 	if (adev->dma_mode < XFER_UDMA_0) {
 		/* bits 3-0 hold recovery timing bits 8-10 active timing and
-		   the higher bits are dependant on the device, bit 15 udma */
+		   the higher bits are dependent on the device, bit 15 udma */
 		timing &= ~0x870F;
 		timing |= mwdma_bits[speed];
 	} else {