tools: fix build without LIBCRYPTO support

Commit cb9faa6f98ae ("tools: Use a single target-independent config to
enable OpenSSL") introduced a target-independent configuration to build
crypto features in host tools.

But since commit 2c21256b27d7 ("hash: Use Kconfig to enable hashing in
host tools and SPL") the build without OpenSSL is broken, due to FIT
signature/encryption features. Add missing conditional compilation
tokens to fix this.

Signed-off-by: Paul-Erwan Rio <paulerwan.rio@gmail.com>
Tested-by: Alexander Dahl <ada@thorsis.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/image.h b/include/image.h
index 432ec92..21de70f 100644
--- a/include/image.h
+++ b/include/image.h
@@ -1465,7 +1465,7 @@
  * device
  */
 #if defined(USE_HOSTCC)
-# if defined(CONFIG_FIT_SIGNATURE)
+# if CONFIG_IS_ENABLED(FIT_SIGNATURE)
 #  define IMAGE_ENABLE_SIGN	1
 #  define FIT_IMAGE_ENABLE_VERIFY	1
 #  include <openssl/evp.h>
diff --git a/tools/Kconfig b/tools/Kconfig
index f8632cd..f01ed78 100644
--- a/tools/Kconfig
+++ b/tools/Kconfig
@@ -51,6 +51,7 @@
 	  Support the rsassa-pss signature scheme in the tools builds
 
 config TOOLS_FIT_SIGNATURE
+	depends on TOOLS_LIBCRYPTO
 	def_bool y
 	help
 	  Enable signature verification of FIT uImages in the tools builds
diff --git a/tools/fit_image.c b/tools/fit_image.c
index 71e031c..beef1fa 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -61,7 +61,7 @@
 		ret = fit_set_timestamp(ptr, 0, time);
 	}
 
-	if (!ret)
+	if (CONFIG_IS_ENABLED(FIT_SIGNATURE) && !ret)
 		ret = fit_pre_load_data(params->keydir, dest_blob, ptr);
 
 	if (!ret) {
diff --git a/tools/image-host.c b/tools/image-host.c
index ca49503..90bc9f9 100644
--- a/tools/image-host.c
+++ b/tools/image-host.c
@@ -14,8 +14,10 @@
 #include <image.h>
 #include <version.h>
 
+#if CONFIG_IS_ENABLED(FIT_SIGNATURE)
 #include <openssl/pem.h>
 #include <openssl/evp.h>
+#endif
 
 /**
  * fit_set_hash_value - set hash value in requested has node
@@ -1131,6 +1133,7 @@
 	return 0;
 }
 
+#if CONFIG_IS_ENABLED(FIT_SIGNATURE)
 /*
  * 0) open file (open)
  * 1) read certificate (PEM_read_X509)
@@ -1239,6 +1242,7 @@
  out:
 	return ret;
 }
+#endif
 
 int fit_cipher_data(const char *keydir, void *keydest, void *fit,
 		    const char *comment, int require_keys,
diff --git a/tools/mkimage.c b/tools/mkimage.c
index 6dfe3e1..ac62ebb 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -115,7 +115,7 @@
 		"          -B => align size in hex for FIT structure and header\n"
 		"          -b => append the device tree binary to the FIT\n"
 		"          -t => update the timestamp in the FIT\n");
-#ifdef CONFIG_FIT_SIGNATURE
+#if CONFIG_IS_ENABLED(FIT_SIGNATURE)
 	fprintf(stderr,
 		"Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-p addr] [-r] [-N engine]\n"
 		"          -k => set directory containing private keys\n"
@@ -130,8 +130,9 @@
 		"          -o => algorithm to use for signing\n");
 #else
 	fprintf(stderr,
-		"Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");
+		"Signing / verified boot not supported (CONFIG_TOOLS_FIT_SIGNATURE undefined)\n");
 #endif
+
 	fprintf(stderr, "       %s -V ==> print version information and exit\n",
 		params.cmdname);
 	fprintf(stderr, "Use '-T list' to see a list of available image types\n");