Updates hydra: ad8dbf1 Provision: use dracut as default initramfs manager

diff --git a/hydra b/hydra
index a134a4704c83912c8374313853cbcb4e8b788150..ad8dbf1400ef145b86d32feec83e48a6546c8260 160000 (submodule)
--- a/hydra
+++ b/hydra
@@ -1 +1 @@
-Subproject commit a134a4704c83912c8374313853cbcb4e8b788150
+Subproject commit ad8dbf1400ef145b86d32feec83e48a6546c8260