[PATCH v2 2/4] image-fit: Fix FIT_CIPHER linking

[Joel Stanley]

When CONFIG_FIT_CIPHER=y and CONFIG_FIT_SIGNATURE=n is there is no
implementation of image_get_host_blob for mkimage/dumpimage:

 /usr/bin/ld: tools/common/image-cipher.o: in function `fit_image_decrypt_data':
 image-cipher.c:(.text+0x9a): undefined reference to `image_get_host_blob'

Move the implementation to a common file so it can be shaed between
image-cipher.c and image-fit-sig.c.

Signed-off-by: Joel Stanley <joel at jms.id.au>
---
v2: Fix compilation when signature and ciphering are both enabled
---
 common/image-fit-sig.c | 14 --------------
 common/image-fit.c     | 15 +++++++++++++++
 2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/common/image-fit-sig.c b/common/image-fit-sig.c
index 5401d9411b98..d39741e9058f 100644
--- a/common/image-fit-sig.c
+++ b/common/image-fit-sig.c
@@ -19,20 +19,6 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define IMAGE_MAX_HASHED_NODES		100
 
-#ifdef USE_HOSTCC
-void *host_blob;
-
-void image_set_host_blob(void *blob)
-{
-	host_blob = blob;
-}
-
-void *image_get_host_blob(void)
-{
-	return host_blob;
-}
-#endif
-
 /**
  * fit_region_make_list() - Make a list of image regions
  *
diff --git a/common/image-fit.c b/common/image-fit.c
index c82d4d8015f0..664a0d00006c 100644
--- a/common/image-fit.c
+++ b/common/image-fit.c
@@ -112,6 +112,21 @@ int fit_parse_subimage(const char *spec, ulong addr_curr,
 }
 #endif /* !USE_HOSTCC */
 
+#ifdef USE_HOSTCC
+/* Host tools use these implementations for Cipher and Signature support */
+static void *host_blob;
+
+void image_set_host_blob(void *blob)
+{
+	host_blob = blob;
+}
+
+void *image_get_host_blob(void)
+{
+	return host_blob;
+}
+#endif /* USE_HOSTCC */
+
 static void fit_get_debug(const void *fit, int noffset,
 		char *prop_name, int err)
 {
-- 
2.29.2