core: call prccessHardwareCaps after GetHardwareInfo

the process capabilities of a host is now:

1. calling GetVdsCaps
2. persisting to DB *only* the cpu_flags from the result vds object
3. calling processHardwareCaps
4. calling processSoftwareCaps

Bug-Url: https://bugzilla.redhat.com/1077300
Change-Id: Ief9d623e4b46faa6809f9994ee78564b0955c306
Signed-off-by: Roy Golan <rgolan@redhat.com>