arm_ffa: use debug logs

replace info logs with debug logs

Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/firmware/arm-ffa/ffa-emul-uclass.c b/drivers/firmware/arm-ffa/ffa-emul-uclass.c
index 5562bba..4bf9f60 100644
--- a/drivers/firmware/arm-ffa/ffa-emul-uclass.c
+++ b/drivers/firmware/arm-ffa/ffa-emul-uclass.c
@@ -695,7 +695,7 @@
 		return ret;
 	}
 
-	log_info("FF-A emulator ready to use\n");
+	log_debug("FF-A emulator ready to use\n");
 
 	return 0;
 }