Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index d007e4a..78a16a7 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -965,7 +965,7 @@
 		goto failed;
 
 	smtcfb_setmode(sfb);
-	/* Primary display starting from 0 postion */
+	/* Primary display starting from 0 position */
 	hw.BaseAddressInVRAM = 0;
 	sfb->fb.par = &hw;
 
@@ -1055,7 +1055,7 @@
 
 	pdev->dev.power.power_state = msg;
 
-	/* additionaly turn off all function blocks including internal PLLs */
+	/* additionally turn off all function blocks including internal PLLs */
 	smtc_seqw(0x21, 0xff);
 
 	return 0;