MAINTAINERS: Add thunderbolt.h to the Thunderbolt driver entry

The new API header (include/linux/thunderbolt.h) is maintained by the
Thunderbolt driver maintainers.

Signed-off-by: Mika Westerberg <[email protected]>
Reviewed-by: Michael Jamet <[email protected]>
Reviewed-by: Yehezkel Bernat <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: westeri

MAINTAINERS

@@ -13278,6 +13278,7 @@ M:	Mika Westerberg <[email protected]>
 M:	Yehezkel Bernat <[email protected]>
 S:	Maintained
 F:	drivers/thunderbolt/
+F:	include/linux/thunderbolt.h
 
 THUNDERX GPIO DRIVER
 M:	David Daney <[email protected]>