acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL

These files were relying on module.h to come in via the path
in an include/acpi header file, but we don't want to have
instances of module.h being included from include/* files
if it can be avoided.  Have the files include export.h instead.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

drivers/acpi/proc.c

@@ -1,5 +1,6 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/export.h>
 #include <linux/suspend.h>
 #include <linux/bcd.h>
 #include <asm/uaccess.h>