kernel tests

[Hien Nguyen]

I just checked in some scripts under tests/kernel that provides the 
basic automation for the kernel tests.
At the tests/kernel directory run the
./runtests.sh

The runtests.sh will execute the following test
colocated_probes
functional_kprobe_test
temp_disarm
kprobe_unregister_bz1234

The output should look like this when all tests passed
[root@dyn9047022138 kernel]# ./runtests.sh
colocated_probes : PASSED
kprobe_test : PASSED
temp_disarm : PASSED
kprobe_unregister : PASSED

This has been tested on my i386 machine, ppc64 support will be next, 
then more tests will be added as we goes.

Hien.