tests: Add boost_system.so from externals to test manifest

With boost 1.69 all symbols are hidden and the kernel no longer
exports boost_system.so. However some applications from
modules - most notably unit tests - link against much older
version of boost 1.55 from externals (see issue #743) and fail because
of missing symbol from boost_system.so. This patch adds boost_system.so
from externals to the test manifest skeleton makes all unit tests pass
on Fedora 30.

Please note that once we address #743 adding boost_system.so should
not be necessary in this case (at least we hope) as the unit tests will be linked
with the same version from host as the kernel is.

Fixes #1040

Signed-off-by: Waldemar Kozaczuk <[email protected]>

Author: wkozaczuk

modules/tests/usr.manifest.skel

@@ -1,3 +1,4 @@
 /usr/lib/&/libboost_unit_test_framework.so.1.55.0: %(miscbase)s/usr/lib64/&
 /usr/lib/&/libboost_filesystem.so.1.55.0: %(miscbase)s/usr/lib64/&
+/usr/lib/&/libboost_system.so.1.55.0: %(miscbase)s/usr/lib64/&
 /testrunner.so: ./tests/testrunner.so