Merge pull request AliceO2Group#2 from AliceO2Group/rm_locks

Manually remove pda and channel locks after eol

Merge pull request AliceO2Group#1 from sy-c/syc-patch-1

reset cru moved after link mask set

New paths for shared mem files

Fix locking (syntax whoops)

Add locking to Driver

Fix PdaDmaBuffer locking (was destroyed immediately after creation)

Add command error checking in freeUnusedChannelBuffers

Set data source using BAR 0

Add path check for channel buffer cleanup

Fix lock file path