net: dsa: lantiq: Fix path in MAINTAINERS file

The MAINTAINERS file contained the wrong file name of the driver.

Fixes: 14fceff ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -8190,7 +8190,7 @@ S:	Maintained
 F:	net/dsa/tag_gswip.c
 F:	drivers/net/ethernet/lantiq_xrx200.c
 F:	drivers/net/dsa/lantiq_pce.h
-F:	drivers/net/dsa/intel_gswip.c
+F:	drivers/net/dsa/lantiq_gswip.c
 
 LANTIQ MIPS ARCHITECTURE
 M:	John Crispin <john@phrozen.org>