Merge pull request #1474 from bofferdn/patch-6

Point to sb-signing-utils commit which implements scratch dir option
diff --git a/openpower/package/sb-signing-utils/sb-signing-utils.mk b/openpower/package/sb-signing-utils/sb-signing-utils.mk
index f6b2b4c..de8b5eb 100644
--- a/openpower/package/sb-signing-utils/sb-signing-utils.mk
+++ b/openpower/package/sb-signing-utils/sb-signing-utils.mk
@@ -8,7 +8,7 @@
 
 SB_SIGNING_UTILS_LICENSE = Apache-2.0
 SB_SIGNING_UTILS_LICENSE_FILES = LICENSE
-SB_SIGNING_UTILS_VERSION ?= v0.2
+SB_SIGNING_UTILS_VERSION ?= 3088a4026e1216039bd814cb5e369808591f76c5
 
 HOST_SB_SIGNING_UTILS_DEPENDENCIES = host-openssl