Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3daaf3c..1493534 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1084,7 +1084,7 @@
 	case IPV6_SADDR_RULE_PRIVACY:
 	    {
 		/* Rule 7: Prefer public address
-		 * Note: prefer temprary address if use_tempaddr >= 2
+		 * Note: prefer temporary address if use_tempaddr >= 2
 		 */
 		int preftmp = dst->prefs & (IPV6_PREFER_SRC_PUBLIC|IPV6_PREFER_SRC_TMP) ?
 				!!(dst->prefs & IPV6_PREFER_SRC_TMP) :
@@ -1968,7 +1968,7 @@
 					 *  to the stored lifetime since we'll
 					 *  be updating the timestamp below,
 					 *  else we'll set it back to the
-					 *  minumum.
+					 *  minimum.
 					 */
 					if (prefered_lft != ifp->prefered_lft) {
 						valid_lft = stored_lft;