Revert "image.h: Tighten up content using handy CONFIG_IS_ENABLED() macro."

This reverts commit 56adbb3872.

Since commit 56adbb3872 ("image.h: Tighten up content using handy
CONFIG_IS_ENABLED() macro."), I found my boards fail to boot Linux
because the commit changed the logic of macros it touched.  Now,
IMAGE_ENABLE_RAMDISK_HIGH and IMAGE_BOOT_GET_CMDLINE are 0 for all
the boards.

As you can see in include/linux/kconfig.h, CONFIG_IS_ENABLE() (and
IS_ENABLED() as well) can only take a macro that is either defined
as 1 or undefined.  This is met for boolean options defined in
Kconfig.  On the other hand, CONFIG_SYS_BOOT_RAMDISK_HIGH and
CONFIG_SYS_BOOT_GET_CMDLINE are defined without any value in
arch/*/include/asm/config.h .  This kind of clean-up is welcome,
but the options should be moved to Kconfig beforehand.

Moreover, CONFIG_IS_ENABLED(SPL_CRC32_SUPPORT) looks weird.
It should be either CONFIG_IS_ENABLED(CRC32_SUPPORT) or
IS_ENABLED(CONFIG_SPL_CRC32_SUPPORT).  But, I see no define for
CONFIG_SPL_CRC32_SUPPORT anywhere.  Likewise for the other three.

The logic of IMAGE_OF_BOARD_SETUP and IMAGE_OF_SYSTEM_SETUP were
also changed for SPL.  This can be a problem for boards defining
CONFIG_SPL_OF_LIBFDT.  I guess it should have been changed to
IS_ENABLED(CONFIG_OF_BOARD_SETUP).

In the first place, if we replace the references in C code,
the macros IMAGE_* will go away.

  if (IS_ENABLED(CONFIG_OF_BOARD_SETUP) {
          ...
  }

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

include/image.h

@@ -52,15 +52,19 @@ struct lmb;
 #include <hash.h>
 #include <libfdt.h>
 #include <fdt_support.h>
-# ifdef CONFIG_FIT_DISABLE_SHA256
-#  undef CONFIG_SHA256
-#  undef IMAGE_ENABLE_SHA256
-# endif
 # ifdef CONFIG_SPL_BUILD
-#  define IMAGE_ENABLE_CRC32	CONFIG_IS_ENABLED(SPL_CRC32_SUPPORT)
-#  define IMAGE_ENABLE_MD5	CONFIG_IS_ENABLED(SPL_MD5_SUPPORT)
-#  define IMAGE_ENABLE_SHA1	CONFIG_IS_ENABLED(SPL_SHA1_SUPPORT)
-#  define IMAGE_ENABLE_SHA256	CONFIG_IS_ENABLED(SPL_SHA256_SUPPORT)
+#  ifdef CONFIG_SPL_CRC32_SUPPORT
+#   define IMAGE_ENABLE_CRC32	1
+#  endif
+#  ifdef CONFIG_SPL_MD5_SUPPORT
+#   define IMAGE_ENABLE_MD5	1
+#  endif
+#  ifdef CONFIG_SPL_SHA1_SUPPORT
+#   define IMAGE_ENABLE_SHA1	1
+#  endif
+#  ifdef CONFIG_SPL_SHA256_SUPPORT
+#   define IMAGE_ENABLE_SHA256	1
+#  endif
 # else
 #  define CONFIG_CRC32		/* FIT images need CRC32 support */
 #  define CONFIG_MD5		/* and MD5 */
@@ -71,12 +75,53 @@ struct lmb;
 #  define IMAGE_ENABLE_SHA1	1
 #  define IMAGE_ENABLE_SHA256	1
 # endif
+
+#ifdef CONFIG_FIT_DISABLE_SHA256
+#undef CONFIG_SHA256
+#undef IMAGE_ENABLE_SHA256
+#endif
+
+#ifndef IMAGE_ENABLE_CRC32
+#define IMAGE_ENABLE_CRC32	0
+#endif
+
+#ifndef IMAGE_ENABLE_MD5
+#define IMAGE_ENABLE_MD5	0
+#endif
+
+#ifndef IMAGE_ENABLE_SHA1
+#define IMAGE_ENABLE_SHA1	0
+#endif
+
+#ifndef IMAGE_ENABLE_SHA256
+#define IMAGE_ENABLE_SHA256	0
+#endif
+
 #endif /* IMAGE_ENABLE_FIT */
 
-#define IMAGE_ENABLE_RAMDISK_HIGH	CONFIG_IS_ENABLED(SYS_BOOT_RAMDISK_HIGH)
-#define IMAGE_BOOT_GET_CMDLINE		CONFIG_IS_ENABLED(SYS_BOOT_GET_CMDLINE)
-#define IMAGE_OF_BOARD_SETUP		CONFIG_IS_ENABLED(OF_BOARD_SETUP)
-#define IMAGE_OF_SYSTEM_SETUP		CONFIG_IS_ENABLED(OF_SYSTEM_SETUP)
+#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
+# define IMAGE_ENABLE_RAMDISK_HIGH	1
+#else
+# define IMAGE_ENABLE_RAMDISK_HIGH	0
+#endif
+
+#ifdef CONFIG_SYS_BOOT_GET_CMDLINE
+# define IMAGE_BOOT_GET_CMDLINE		1
+#else
+# define IMAGE_BOOT_GET_CMDLINE		0
+#endif
+
+#ifdef CONFIG_OF_BOARD_SETUP
+# define IMAGE_OF_BOARD_SETUP		1
+#else
+# define IMAGE_OF_BOARD_SETUP		0
+#endif
+
+#ifdef CONFIG_OF_SYSTEM_SETUP
+# define IMAGE_OF_SYSTEM_SETUP	1
+#else
+# define IMAGE_OF_SYSTEM_SETUP	0
+#endif
 
 /*
  * Operating System Codes