Handle _SC_PAGE_SIZE in my_sysconf

Mali ump driver uses sysconf(_SC_PAGE_SIZE) in mmap
Merge pull request #52 from groleo/for-upstream

fix hw_get_module signature
Merge pull request #53 from martinbrook/master

Handle _SC_PAGE_SIZE in my_sysconf
fix include path for logging.h

Signed-off-by: Adrian Negreanu <adrian.m.negreanu@intel.com>