cirrus: Move the Cirrus network driver

Move the Cirrus Ethernet driver into drivers/net/ethernet/cirrus/
and make the necessary Kconfig and Makefile changes

CC: Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 96a2d47..ee4ebb4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1768,7 +1768,7 @@
 M:	Hartley Sweeten <hsweeten@visionengravers.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
-F:	drivers/net/arm/ep93xx_eth.c
+F:	drivers/net/ethernet/cirrus/ep93xx_eth.c
 
 CIRRUS LOGIC EP93XX OHCI USB HOST DRIVER
 M:	Lennert Buytenhek <kernel@wantstofly.org>