Add i.MX25 support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index c877d6d..95ba3c5 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -135,6 +135,7 @@
 machine-$(CONFIG_ARCH_MV78XX0)		:= mv78xx0
 machine-$(CONFIG_ARCH_MX1)		:= mx1
 machine-$(CONFIG_ARCH_MX2)		:= mx2
+machine-$(CONFIG_ARCH_MX25)		:= mx25
 machine-$(CONFIG_ARCH_MX3)		:= mx3
 machine-$(CONFIG_ARCH_NETX)		:= netx
 machine-$(CONFIG_ARCH_NS9XXX)		:= ns9xxx