ioc3-eth/meth: Move the SGI drivers

Move the SGI drivers into drivers/net/ethernet/sgi/ and make the
necessary Kconfig and Makefile changes.

CC: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index fbafbb6..1bd9fbd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3424,7 +3424,7 @@
 M:	Ralf Baechle <ralf@linux-mips.org>
 L:	linux-mips@linux-mips.org
 S:	Maintained
-F:	drivers/net/ioc3-eth.c
+F:	drivers/net/ethernet/sgi/ioc3-eth.c
 
 IOC3 SERIAL DRIVER
 M:	Pat Gefre <pfg@sgi.com>