ltp-testsuite: Bump version to 20090630.

Closes #437

- Remove a few obsolete patches.
 - Add a patch to disable syscall tests unsupported by uClibc.
 - Add a patch to fix sched_getaffinity build.

Signed-off-by: Will Newton <will.newton@gmail.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>