x86/intel_rdt: Move special case code for Haswell to a quirk function

x86/intel_rdt: Move special case code for Haswell to a quirk function

BugLink: http://bugs.launchpad.net/bugs/1713619
No functional change, but lay the ground work for other per-model
quirks.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Fenghua" <fenghua.yu@intel.com>
Cc: Ravi V" <ravi.v.shankar@intel.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>
Cc: "Stephane Eranian" <eranian@google.com>
Cc: "Andi Kleen" <ak@linux.intel.com>
Cc: "David Carrillo-Cisneros" <davidcc@google.com>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Link: http://lkml.kernel.org/r/f195a83751b5f8b1d8a78bd3c1914300c8fa3142.1503512900.git.tony.luck@intel.com
(cherry picked from commit 0576113a387e0c8a5d9e24b4cd62605d1c9c0db8)
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>