[PATCH 3.16] x86/eisa: Add missing include

[tedheadster]

Ben, please backport Thomas Gleixner's patch to the 3.16 series.

commit ef1d4deab953ecb1dfcf9f167043bda8b3f14a11
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date:   Thu Aug 31 20:08:16 2017 +0200

    x86/eisa: Add missing include

    The seperation of the EISA init missed to include linux/io.h which breaks
    the build with some special configurations.

    Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
    Fixes: f7eaf6e00fd5 ("x86/boot: Move EISA setup to a separate file")
    Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

diff --git a/arch/x86/kernel/eisa.c b/arch/x86/kernel/eisa.c
index 881f9236ebff..f260e452e4f8 100644
--- a/arch/x86/kernel/eisa.c
+++ b/arch/x86/kernel/eisa.c
@@ -5,6 +5,7 @@
  */
 #include <linux/ioport.h>
 #include <linux/eisa.h>
+#include <linux/io.h>

  static __init int eisa_bus_probe(void)
 {