arch/x86/Kconfig: Allow turning off CONFIG_X86_MPPARSE when either ACPI or SFI is present

MPS tables are not needed for systems that have proper ACPI
support. This is also true for systems that have SFI in place.

So this patch allows the configuration (turning off) of
CONFIG_X86_MPPARSE when either ACPI or SFI is present.

Signed-off-by: Bin Gao <bin.gao@intel.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Bin Gao <bin.gao@linux.intel.com>
Link: http://lkml.kernel.org/r/20121025163544.GB38477@bingao-desk1.fm.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/Kconfig

@@ -310,7 +310,7 @@ config X86_X2APIC
 	  If you don't know what to do here, say N.
 
 config X86_MPPARSE
-	bool "Enable MPS table" if ACPI
+	bool "Enable MPS table" if ACPI || SFI
 	default y
 	depends on X86_LOCAL_APIC
 	---help---