x86, irq: Make MSI and HT_IRQ indepenent of X86_IO_APIC

Now we have splitted functions to support MSI and HT_IRQ into vector.c,
and they have no dependency on IOAPIC any more. So change Kconfig files
to make MSI and HT_IRQ independent of X86_IO_APIC.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Link: http://lkml.kernel.org/r/1414397531-28254-16-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 91a64d3..7a8f1c5 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -67,7 +67,7 @@
 config HT_IRQ
 	bool "Interrupts on hypertransport devices"
 	default y
-	depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
+	depends on PCI && X86_LOCAL_APIC
 	help
 	   This allows native hypertransport devices to use interrupts.