Update coccinelle script to match syntax evolution.

qa/coccinelle/access-pkt-packet.cocci

@@ -15,7 +15,7 @@ p->pkt = E;
 )
 
 @pktfield depends on !init@
-identifier func !~= "^PacketCopyDataOffset$";
+identifier func !~ "^PacketCopyDataOffset$";
 Packet *p;
 position p1;
 @@
@@ -35,7 +35,7 @@ import sys
 sys.exit(1)
 
 @pktlenfield@
-identifier func !~= "^PacketCopyDataOffset$";
+identifier func !~ "^PacketCopyDataOffset$";
 Packet *p;
 position p1;
 @@

qa/coccinelle/banned-functions.cocci

@@ -1,5 +1,5 @@
 @banned@
-identifier func ~= "^\(sprintf\|strcat\|strcpy\|strncpy\|strncat\)$";
+identifier func =~ "^\(sprintf\|strcat\|strcpy\|strncpy\|strncat\)$";
 position p1;
 @@
 

qa/coccinelle/size_t.cocci

@@ -1,7 +1,7 @@
 @sizet@
 size_t p;
-identifier func ~= "^\(sprintf\|printf\|SCLog.*\)$";
+identifier func =~ "^\(sprintf\|printf\|SCLog.*\)$";
-identifier funcn ~= "^.*nprintf$";
+identifier funcn =~ "^.*nprintf$";
 position p1;
 typedef uint16_t;
 typedef uint32_t;