Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 081c6de..bfd618a 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -4544,7 +4544,7 @@
  * Copy 4 bytes to LRAM.
  *
  * The source data is assumed to be in little-endian order in memory
- * and is maintained in little-endian order when writen to LRAM.
+ * and is maintained in little-endian order when written to LRAM.
  */
 static void
 AscMemDWordCopyPtrToLram(PortAddr iop_base,