Add flexible management of lvm filters

Allow user to flexibly manage filters in lvm.conf via
linux:storage:lvm_filters dictionary

Change-Id: I37928610f0ec2bd3ef6f5eac2e5d555a0ce39aa2
Related-Prod: PROD-26396
(cherry picked from commit 40bb5e7efd03e98606c06abf8a55a0e47bf7dab9)
2 files changed