This file was introduced in commit 55eed47d8515 ("ARM: i.MX7: Add
imx7s.dtsi") because the imx clocksource driver picked the wrong clock
to determine the parent frequency. As this is fixed since commit
"ARM: imx: clocksource: Use per clock for determining parent freq" this
file can go away.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>