ARM: uniphier: refactor LED function

The macro, led_write(), is now only used in C sources.  There is no
more reason to keep the tricky assembly macro.  Replace it with a
new C function led_puts().

Also, rename board.h to micro-support-card.h.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/board_early_init_r.c b/arch/arm/mach-uniphier/board_early_init_r.c
index 7d4830a..28c7f82 100644
--- a/arch/arm/mach-uniphier/board_early_init_r.c
+++ b/arch/arm/mach-uniphier/board_early_init_r.c
@@ -5,7 +5,7 @@
  */
 
 #include <common.h>
-#include <mach/board.h>
+#include <mach/micro-support-card.h>
 
 int board_early_init_r(void)
 {