x86, mrst: Add Kconfig dependencies for Moorestown

The Moorestown platform requires IOAPIC for all interrupts from the
south complex, since there is no legacy PIC.

Furthermore, Moorestown I/O requires PCI.  Moorestown PCI depends on PCI MMCONFIG
and DIRECT method to perform device enumeration, as there is no PCI BIOS.

[ hpa: rewrote commit message ]
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
LKML-Reference: <1267120934-9505-1-git-send-email-jacob.jun.pan@linux.intel.com>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>

arch/x86/Kconfig

@@ -388,8 +388,12 @@ config X86_ELAN
 
 config X86_MRST
        bool "Moorestown MID platform"
+	depends on PCI
+	depends on PCI_GOANY
+	depends on PCI_IOAPIC
 	depends on X86_32
 	depends on X86_EXTENDED_PLATFORM
+	depends on X86_IO_APIC
 	select APB_TIMER
 	---help---
 	  Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin