Sync gammarus

Change-Id: I48e992302758caab2b902f5182b5ef00fac7730a
diff --git a/submodules/gammarus b/submodules/gammarus
index beb67a2..054bb5e 160000
--- a/submodules/gammarus
+++ b/submodules/gammarus
@@ -1 +1 @@
-Subproject commit beb67a2d90d5ad793e14e8c6b3cd15bf5b601296
+Subproject commit 054bb5eb03fb5ac750eb6290f740c0fb8cdecffb