drivers/isdn: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required.

In preparation of the module.h usage cleanup, call out the header
that we need to get EXPORT_SYMBOL variants and THIS_MODULE into scope.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

drivers/isdn/capi/kcapi_proc.c

@@ -14,6 +14,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
+#include <linux/export.h>
 
 static char *state2str(unsigned short state)
 {

drivers/isdn/gigaset/asyncdata.c

@@ -16,6 +16,7 @@
 #include "gigaset.h"
 #include <linux/crc-ccitt.h>
 #include <linux/bitrev.h>
+#include <linux/export.h>
 
 /* check if byte must be stuffed/escaped
  * I'm not sure which data should be encoded.

drivers/isdn/gigaset/capi.c

@@ -17,6 +17,7 @@
 #include <linux/isdn/capilli.h>
 #include <linux/isdn/capicmd.h>
 #include <linux/isdn/capiutil.h>
+#include <linux/export.h>
 
 /* missing from kernelcapi.h */
 #define CapiNcpiNotSupportedByProtocol	0x0001

drivers/isdn/gigaset/dummyll.c

@@ -11,6 +11,7 @@
  * =====================================================================
  */
 
+#include <linux/export.h>
 #include "gigaset.h"
 
 void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb)

drivers/isdn/gigaset/ev-layer.c

@@ -13,6 +13,7 @@
  * =====================================================================
  */
 
+#include <linux/export.h>
 #include "gigaset.h"
 
 /* ========================================================== */

drivers/isdn/gigaset/i4l.c

@@ -15,6 +15,7 @@
 
 #include "gigaset.h"
 #include <linux/isdnif.h>
+#include <linux/export.h>
 
 #define SBUFSIZE	4096	/* sk_buff payload size */
 #define TRANSBUFSIZE	768	/* bytes per skb for transparent receive */

drivers/isdn/mISDN/clock.c

@@ -38,6 +38,7 @@
 #include <linux/stddef.h>
 #include <linux/spinlock.h>
 #include <linux/mISDNif.h>
+#include <linux/export.h>
 #include "core.h"
 
 static u_int *debug;

drivers/isdn/mISDN/dsp_audio.c

@@ -12,6 +12,7 @@
 #include <linux/delay.h>
 #include <linux/mISDNif.h>
 #include <linux/mISDNdsp.h>
+#include <linux/export.h>
 #include "core.h"
 #include "dsp.h"
 

drivers/isdn/mISDN/dsp_pipeline.c

@@ -30,6 +30,7 @@
 #include <linux/string.h>
 #include <linux/mISDNif.h>
 #include <linux/mISDNdsp.h>
+#include <linux/export.h>
 #include "dsp.h"
 #include "dsp_hwec.h"
 

drivers/isdn/mISDN/socket.c

@@ -17,6 +17,7 @@
 
 #include <linux/mISDNif.h>
 #include <linux/slab.h>
+#include <linux/export.h>
 #include "core.h"
 
 static u_int	*debug;