ARM: uniphier: call uniphier_get_board_param() without FDT blob

Move "gd->fdt_blob" from the caller to the callee so that this
function can be used more easily.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/include/mach/init.h b/arch/arm/mach-uniphier/include/mach/init.h
index 5108edd..27ae27d 100644
--- a/arch/arm/mach-uniphier/include/mach/init.h
+++ b/arch/arm/mach-uniphier/include/mach/init.h
@@ -20,7 +20,7 @@
 	unsigned int  dram_freq;
 };
 
-const struct uniphier_board_data *uniphier_get_board_param(const void *fdt);
+const struct uniphier_board_data *uniphier_get_board_param(void);
 
 int ph1_sld3_init(const struct uniphier_board_data *bd);
 int ph1_ld4_init(const struct uniphier_board_data *bd);