x86, mrst: Remove X86_MRST dependency on PCI_IOAPIC

PCI_IOAPIC is used for PCI hotplug, Moorestown does not have ACPI PCI
hotplug, as it does not have ACPI.  This unnecessary dependency causes
X86_MRST fail to be selected if ACPI is not selected.
Signed-off-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
LKML-Reference: <1267550368-7435-1-git-send-email-jacob.jun.pan@linux.intel.com>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>

arch/x86/Kconfig

@@ -390,7 +390,6 @@ 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