testsuite: add ppc and s390 oops examples

Related to #767

Signed-off-by: Jakub Filak <jfilak@redhat.com>
testsuite: test processing of ppc and s390 oopses

Related to #767

Signed-off-by: Jakub Filak <jfilak@redhat.com>
koops: tweak koops parser for s390 Call Traces

The first frame of a s390 Call Trace looks like this:
  ([<000000000045400c>] __list_add+0x9c/0xa4)

The last frame is followed by:
  Last Breaking-Event-Address:
  [<ADDRESS>] SYMBOL+OFFSET/ADDRESS

The hashing algorithm also needs to be tweaked but this part is to be
implemented in satyr.

Related rhbz#1040892

Signed-off-by: Jakub Filak <jfilak@redhat.com>