stdio.h: move printf() stuff from <common.h> to <stdio.h>

<common.h> pulls in a lot of headers.  Including it from every .c
file is a bad idea.  We need to remove contents until it contains
nothing.

Move printf() and friends to <stdio.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/include/common.h b/include/common.h
index aaed131..5e84194 100644
--- a/include/common.h
+++ b/include/common.h
@@ -29,6 +29,7 @@
 #include <linux/stringify.h>
 #include <asm/ptrace.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <linux/kernel.h>
 
 #include <part.h>
@@ -699,46 +700,6 @@
 /* serial stuff */
 int	serial_printf (const char *fmt, ...)
 		__attribute__ ((format (__printf__, 1, 2)));
-/* stdin */
-int	getc(void);
-int	tstc(void);
-
-/* stdout */
-#if !defined(CONFIG_SPL_BUILD) || \
-	(defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_SERIAL_SUPPORT)) || \
-	(defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) && \
-		defined(CONFIG_SPL_SERIAL_SUPPORT))
-void	putc(const char c);
-void	puts(const char *s);
-int	printf(const char *fmt, ...)
-		__attribute__ ((format (__printf__, 1, 2)));
-int	vprintf(const char *fmt, va_list args);
-#else
-#define	putc(...) do { } while (0)
-#define puts(...) do { } while (0)
-#define printf(...) do { } while (0)
-#define vprintf(...) do { } while (0)
-#endif
-
-/* stderr */
-#define eputc(c)		fputc(stderr, c)
-#define eputs(s)		fputs(stderr, s)
-#define eprintf(fmt,args...)	fprintf(stderr,fmt ,##args)
-
-/*
- * FILE based functions (can only be used AFTER relocation!)
- */
-#define stdin		0
-#define stdout		1
-#define stderr		2
-#define MAX_FILES	3
-
-int	fprintf(int file, const char *fmt, ...)
-		__attribute__ ((format (__printf__, 2, 3)));
-void	fputs(int file, const char *s);
-void	fputc(int file, const char c);
-int	ftstc(int file);
-int	fgetc(int file);
 
 /* lib/gzip.c */
 int gzip(void *dst, unsigned long *lenp,