libipt: fall back to file-based sections if mmap fails
libipt: fall back to file-based sections if mmap fails

Change-Id: Ice8e5bf17479bd3979b8c660805dfde7ddd76acf
Signed-off-by: Markus Metzger <5f675b2b36595f90898e014b548ff7d9bbff2ab7@intel.com>

01org/processor-trace,andikleen/processor-trace,hoangt/processor-trace,andikleen/processor-trace,01org/processor-trace,01org/processor-trace,hoangt/processor-trace