x86, mrst: Add platform timer info parsing code

Moorestown platform timer information is obtained from SFI FW tables.
This patch parses SFI table then assign the irq information to mp_irqs.

Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com>
LKML-Reference: <43F901BD926A4E43B106BF17856F07559FB80D0B@orsmsx508.amr.corp.intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
index 57a177a..fa144f2 100644
--- a/arch/x86/include/asm/mrst.h
+++ b/arch/x86/include/asm/mrst.h
@@ -12,4 +12,6 @@
 #define _ASM_X86_MRST_H
 extern int pci_mrst_init(void);
 
+#define SFI_MTMR_MAX_NUM 8
+
 #endif /* _ASM_X86_MRST_H */