x64, x2apic/intr-remap: use CONFIG_DMAR for DMA-remapping specific code
x64, x2apic/intr-remap: use CONFIG_DMAR for DMA-remapping specific code

DMA remapping specific code covered with CONFIG_DMAR in
the generic code which will also be used later for enabling Interrupt-remapping.

Signed-off-by: Suresh Siddha <a42fd12510d3895be740fb89f87586733ee62f57@intel.com>
Cc: 5c1e68b099950c134891f0b6e179498a8ebe9cf9@linux-foundation.org
Cc: 9043bf4b08f6c93a2cb55d98c3494b123858348f@linux.intel.com
Cc: dbd122ef7b6a09ffecf5db9c9296320f3c94e707@firstfloor.org
Cc: 8a741aa8cbd77ebc4a56ddb528ce9fd15d42f034@xmission.com
Cc: bc7add126c2dbb8382bf1c28ac262b9363a32706@virtuousgeek.org
Cc: 9fc09c92f9d4898dd6e5af3e81679b627e939258@sgi.com
Signed-off-by: Ingo Molnar <9dbbbf0688fedc85ad4da37637f1a64b8c718ee2@elte.hu>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs