openpower: guard: Bumped c5fcfb5..dd856b9

In this bumped the guard with below patches

Ramesh Iyyar (2):
      libguard: Added persistentTypeOnly flag in the getAll interface
      guard: Updated libguard getAll interface as per signature

Signed-off-by: Ramesh Iyyar <rameshi1@in.ibm.com>
Change-Id: I56c984c6a2ccdc70b0b9472aef56052c363e11ad
diff --git a/meta-openpower/recipes-bsp/guard/guard_git.bb b/meta-openpower/recipes-bsp/guard/guard_git.bb
index 9c236dd..9f29ab9 100644
--- a/meta-openpower/recipes-bsp/guard/guard_git.bb
+++ b/meta-openpower/recipes-bsp/guard/guard_git.bb
@@ -11,7 +11,7 @@
 S = "${WORKDIR}/git"
 
 SRC_URI = "git://git@github.com/open-power/guard;branch="main";protocol=https"
-SRCREV = "c5fcfb51e4fd51bc9adf11ca41e67c490d6a8cf7"
+SRCREV = "dd856b90015c7ef79685d8f32706a967bd411d97"
 
 DEPENDS = "cli11"