nitrogen6x: config: use FS_GENERIC load command

Remove the individual attempts to load using ext2 and fat, replace with the
generic load command supporting available filesystem types.

Signed-off-by: Kevin Mihelich <kevin@archlinuxarm.org>

include/configs/nitrogen6x.h

@@ -270,15 +270,13 @@
 				"usb start ;" \
 			"fi; " \
 			"for disk in 0 1 ; do ${dtype} dev ${disk} ;" \
-				"for fs in fat ext2 ; do " \
+				"load " \
-					"${fs}load " \
 					"${dtype} ${disk}:1 " \
 					"10008000 " \
 					"/6x_bootscript" \
 					"&& source 10008000 ; " \
 			"done ; " \
 		"done; " \
-		"done; " \
 		"setenv stdout serial,vga ; " \
 		"echo ; echo 6x_bootscript not found ; " \
 		"echo ; echo serial console at 115200, 8N1 ; echo ; " \
@@ -287,12 +285,10 @@
 	"upgradeu=for dtype in ${bootdevs}" \
 		"; do " \
 		"for disk in 0 1 ; do ${dtype} dev ${disk} ;" \
-		     "for fs in fat ext2 ; do " \
+			"load ${dtype} ${disk}:1 10008000 " \
-				"${fs}load ${dtype} ${disk}:1 10008000 " \
 				"/6x_upgrade " \
 				"&& source 10008000 ; " \
 		"done ; " \
-		"done ; " \
 	"done\0" \
 
 #endif