imx: mmdc_size: Allow building it for i.MX7ULP

i.MX7ULP uses the same MMDC controller IP as found on i.MX53
and i.MX6, so build mmdc_size.c for i.MX7ULP as well.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index cb6ef53..9dfe883 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -51,7 +51,7 @@
 obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o
 endif
 ifeq ($(SOC),$(filter $(SOC),mx7ulp))
-obj-y  += cache.o
+obj-y  += cache.o mmdc_size.o
 obj-$(CONFIG_IMX_HAB) += hab.o
 endif
 ifeq ($(SOC),$(filter $(SOC),vf610))