This will be used when initialising TMU devices using DT
until common clock framework support is added.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit ef9cb75ca70c8d31b2493d1fd6cbf8b3dd1dec95) Signed-off-by: Simon Horman <horms+renesas@verge.net.au>