lvm: disable lvmetad

lvm: disable lvmetad

Currently dracut uses lvm.conf as found in the system and modifies only
global/locking_type setting. As there's a new feature introduced - the lvmetad
daemon, dracut should disable its use as well by setting "global/use_lvmetad=0"
(patch attached).

Otherwise, there's a warning message issued:

dracut: WARNING: Failed to connect to lvmetad: No such file or directory.
Falling back to internal scanning.

@@ -, +, @@
 modules.d/90lvm/lvm_scan.sh     |    2 ++
 modules.d/90lvm/module-setup.sh |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)