pseudo: Add patch to fix random file permissions in some cases

:Release Notes:
There is race-condition in fastop implementation in pseudo, this
patch adds synchronization barier on process exit, which should
ensure that pseudo-server request queue is finished before the
process exits and different one starts.

:Detailed Notes:
This is only one part of the solution, we also need package.bbclass
change (to set umask correctly) and dynamically linked tools.

:Testing Performed:
Multiple builds from scratch were executed and files-in-image.txt
report from them compared - results will be posted in [GF-14832]

:QA Notes:
File permissions in image should be more deterministic now.

:Issues Addressed:
[YOCTO #5132]  pseudo: Different file attributes detected by
               buildhistory
               https://bugzilla.yoctoproject.org/show_bug.cgi?id=5132
[GF-14832] Determine if there are other native tools that must be
           changed to be dynamically linked
[GF-14822] All native tools that generate files that are installed on
           the target must be dynamically linked

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@lge.com>
Change-Id: I38cc29eef8b99709e373582731d02c02a3727de7
Reviewed-on: https://g2g.palm.com/3488
Reviewed-by: Build Verification
Reviewed-by: Martin Jansa <Martin.Jansa@lge.com>
Tested-by: Martin Jansa <Martin.Jansa@lge.com>
Reviewed-by: Susan Montooth <susan.montooth@lge.com>