x86, microcode: Vendor abstract out save_microcode_in_initrd()

Currently save_microcode_in_initrd() is declared in vendor neutural
microcode.h file, but defined in vendor specific
microcode_intel_early.c file. Vendor abstract it out to
microcode_core_early.c with a wrapper function.

Signed-off-by: Jacob Shin <jacob.shin@amd.com>
Link: http://lkml.kernel.org/r/1369940959-2077-3-git-send-email-jacob.shin@amd.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
index 5356f92..87a0853 100644
--- a/arch/x86/include/asm/microcode_intel.h
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -67,10 +67,12 @@
 extern void __init load_ucode_intel_bsp(void);
 extern void __cpuinit load_ucode_intel_ap(void);
 extern void show_ucode_info_early(void);
+extern int __init save_microcode_in_initrd_intel(void);
 #else
 static inline __init void load_ucode_intel_bsp(void) {}
 static inline __cpuinit void load_ucode_intel_ap(void) {}
 static inline void show_ucode_info_early(void) {}
+static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; }
 #endif
 
 #if defined(CONFIG_MICROCODE_INTEL_EARLY) && defined(CONFIG_HOTPLUG_CPU)