mei: export mei.h for the user space

The header exports API for application layer

1. move under include/linux and add to  the export list
2. update include path n the sources
3. update TODO

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index afb0a58..a7d0bb0 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -22,7 +22,7 @@
 #include "mei_dev.h"
 #include "hw.h"
 #include "interface.h"
-#include "mei.h"
+#include <linux/mei.h>
 
 const uuid_le mei_amthi_guid  = UUID_LE(0x12f80028, 0xb4b7, 0x4b2d, 0xac,
 						0xa8, 0x46, 0xe0, 0xff, 0x65,