i386/x86_64: move headers to include/asm-x86

Move the headers to include/asm-x86 and fixup the
header install make rules

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/include/asm-sh/mpc1211/mc146818rtc.h b/include/asm-sh/mpc1211/mc146818rtc.h
index 0ec78f6..e245f2a 100644
--- a/include/asm-sh/mpc1211/mc146818rtc.h
+++ b/include/asm-sh/mpc1211/mc146818rtc.h
@@ -1,6 +1,6 @@
 /*
  * MPC1211 uses PC/AT style RTC definitions.
  */
-#include <asm-i386/mc146818rtc.h>
+#include <asm-x86/mc146818rtc_32.h>