uniphier: make I/O register region configurable

The I/O register region will be changed in the next SoC. Make it
configurable.

Change-Id: Iec0cbd1ef2d0703ebc7c3d3082edd73791bbfec9
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/plat/socionext/uniphier/uniphier_bl2_setup.c b/plat/socionext/uniphier/uniphier_bl2_setup.c
index 9c8d2da..7a7f786 100644
--- a/plat/socionext/uniphier/uniphier_bl2_setup.c
+++ b/plat/socionext/uniphier/uniphier_bl2_setup.c
@@ -43,7 +43,7 @@
 	int skip_scp = 0;
 	int ret;
 
-	uniphier_mmap_setup();
+	uniphier_mmap_setup(uniphier_soc);
 	enable_mmu_el3(0);
 
 	/* add relocation offset (run-time-address - link-address) */