When the signing algorithm is given with -o, fit_image_write_sig()
records it in the "algo" property of the signature node using a string
literal, while fit_image_hash_get_algo(), which mkimage and the
verification code use to read that property, uses FIT_ALGO_PROP. Use
the constant for the write as well.

No functional change.

Signed-off-by: Aristo Chen <[email protected]>
Reviewed-by: Quentin Schulz <[email protected]>
---
v2: split out of v1 patch 1, no code changes, Reviewed-by from v1
patch 1 kept

 tools/image-host.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/image-host.c b/tools/image-host.c
index 46036673050..3974ee3d389 100644
--- a/tools/image-host.c
+++ b/tools/image-host.c
@@ -167,7 +167,8 @@ static int fit_image_write_sig(void *fit, int noffset, 
uint8_t *value,
                }
        }
        if (algo_name && !ret)
-               ret = fdt_setprop_string(fit, noffset, "algo", algo_name);
+               ret = fdt_setprop_string(fit, noffset, FIT_ALGO_PROP,
+                                        algo_name);
 
        return ret;
 }
-- 
2.43.0

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