ARM: uniphier: add PH1-LD21 board data

This has the same silicon die as PH1-LD20, but includes DRAM chips
in its package.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/init.h b/arch/arm/mach-uniphier/init.h
index 31da605..db80074 100644
--- a/arch/arm/mach-uniphier/init.h
+++ b/arch/arm/mach-uniphier/init.h
@@ -24,6 +24,8 @@
 	struct uniphier_dram_ch dram_ch[UNIPHIER_MAX_NR_DRAM_CH];
 	unsigned int flags;
 #define UNIPHIER_BD_DDR3PLUS		BIT(2)
+#define UNIPHIER_BD_PACKAGE_LD21	1
+#define UNIPHIER_BD_PACKAGE_TYPE(f)	((f) & 0x3)
 };
 
 const struct uniphier_board_data *uniphier_get_board_param(void);