x86: Update machine config to use new x86 tunes
x86: Update machine config to use new x86 tunes

Use the new meta-intel and oe-core x86 tune configuration files.
This fixes errors including the files and using the variables have since
changed names.

Signed-off-by: Darren Hart <38f9eaa30910c40b06f5a60020b1222f2a953801@linux.intel.com>

koenkooi/meta-minnow,koenkooi/meta-minnow