iommu: Rename the DMAR and INTR_REMAP config options

Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent
with the other IOMMU options.

Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the
irq subsystem name.

And define the CONFIG_DMAR_TABLE for the common ACPI DMAR
routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6a47bb2..b8cd544 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -130,7 +130,7 @@
 	bool
 
 config NEED_DMA_MAP_STATE
-       def_bool (X86_64 || DMAR || DMA_API_DEBUG)
+       def_bool (X86_64 || INTEL_IOMMU || DMA_API_DEBUG)
 
 config NEED_SG_DMA_LENGTH
 	def_bool y
@@ -220,7 +220,7 @@
 
 config HAVE_INTEL_TXT
 	def_bool y
-	depends on EXPERIMENTAL && DMAR && ACPI
+	depends on EXPERIMENTAL && INTEL_IOMMU && ACPI
 
 config X86_32_SMP
 	def_bool y
@@ -287,7 +287,7 @@
 
 config X86_X2APIC
 	bool "Support x2apic"
-	depends on X86_LOCAL_APIC && X86_64 && INTR_REMAP
+	depends on X86_LOCAL_APIC && X86_64 && IRQ_REMAP
 	---help---
 	  This enables x2apic support on CPUs that have this feature.