Add suffix to lib and ko files

This allows multiple builds of URT on the same machine, installed
separately.  User application can then choose to build and link
against either.

Signed-off-by: Shahbaz Youssefi <ShabbyX@gmail.com>
Merge remote-tracking branch 'origin/master'

Signed-off-by: Shahbaz Youssefi <ShabbyX@gmail.com>
Better handling of conditional valgrind check

Signed-off-by: Shahbaz Youssefi <ShabbyX@gmail.com>