Fix breakage in _try_ppc64_arch_generic_cpu caused by Coverity fixes
In the Coverity fixes applied in the previous commit, a resource leak
was plugged incorrectly, which led to operf failing on ppc64 platform
when a non-default event was specified. The failing message was:
NULL returned for one or both of AT_PLATFORM/AT_BASE_PLATFORM
followed by an ugly "double free or corruption" message.
This patch fixes that error.
Signed-off-by: Maynard Johnson <firstname.lastname@example.org>