Proper inclusion of uaccess.h is from linux, not asm headers

Signed-off-by: Thomas Backlund <tmb@mageia.org>

diff -Nurp bbswitch-0.8.orig/bbswitch.c bbswitch-0.8/bbswitch.c
--- bbswitch-0.8.orig/bbswitch.c
+++ bbswitch-0.8/bbswitch.c
@@ -31,7 +31,7 @@
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/module.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <linux/suspend.h>
 #include <linux/seq_file.h>
 #include <linux/pm_runtime.h>