Fix 'test_tools_smoke' from failing due to 'tools/wakeuptime'
Fix 'test_tools_smoke' from failing due to 'tools/wakeuptime'

This fixes 'test_tools_smoke' from failing on systems
running linux < 4.6 because of the wakeuptime script.
This script uses the bpf stack maps feature which is
available only for linux 4.6+. To avoid this, we skip
running it if the minimum kernel version requirement
is not met.

Signed-off-by: Sandipan Das <ae8113f64d9c72812e097938d25a8975da69c074@linux.vnet.ibm.com>

tuxology/bcc,iovisor/bcc,mcaleavya/bcc,iovisor/bcc,iovisor/bcc,tuxology/bcc,tuxology/bcc,brendangregg/bcc,tuxology/bcc,brendangregg/bcc,mcaleavya/bcc,mcaleavya/bcc,brendangregg/bcc,tuxology/bcc,iovisor/bcc,iovisor/bcc,brendangregg/bcc,brendangregg/bcc,mcaleavya/bcc,mcaleavya/bcc