MAINTAINERS: Intel nic drivers

Add a new F: line for the intel subdirectories.

This allows get_maintainers to avoid using git log
and cc'ing people that have submitted clean-up style
patches for all first level directories under
drivers/net/ethernet/intel/

This does not make e100.c maintained.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -4545,6 +4545,7 @@ F:	Documentation/networking/ixgbevf.txt
 F:	Documentation/networking/i40e.txt
 F:	Documentation/networking/i40evf.txt
 F:	drivers/net/ethernet/intel/
+F:	drivers/net/ethernet/intel/*/
 
 INTEL-MID GPIO DRIVER
 M:	David Cohen <david.a.cohen@linux.intel.com>