Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/pci/intr_remapping.c b/drivers/pci/intr_remapping.c
index a22557b..3607faf 100644
--- a/drivers/pci/intr_remapping.c
+++ b/drivers/pci/intr_remapping.c
@@ -289,7 +289,7 @@
  * source validation type
  */
 #define SVT_NO_VERIFY		0x0  /* no verification is required */
-#define SVT_VERIFY_SID_SQ	0x1  /* verify using SID and SQ fiels */
+#define SVT_VERIFY_SID_SQ	0x1  /* verify using SID and SQ fields */
 #define SVT_VERIFY_BUS		0x2  /* verify bus of request-id */
 
 /*