mx6cuboxi: Fix the defconfig name

The correct name of the defconfig file is 'mx6cuboxi_defconfig'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/board/solidrun/mx6cuboxi/MAINTAINERS b/board/solidrun/mx6cuboxi/MAINTAINERS
index 3d468ed..a3506c2 100644
--- a/board/solidrun/mx6cuboxi/MAINTAINERS
+++ b/board/solidrun/mx6cuboxi/MAINTAINERS
@@ -3,4 +3,4 @@
 S:	Maintained
 F:	board/solidrun/mx6cuboxi/
 F:	include/configs/mx6cuboxi.h
-F:	configs/mx6cuboxi_spl_defconfig
+F:	configs/mx6cuboxi_defconfig