clk: imx25: print silicon revision during init

Print the imx25 silicon revision when the clocks are initialised.

Use the same mechanism as for imx27, i.e. call mx25_revision.
This function is unused at the moment.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20230802184046.153394-2-martin@kaiser.cx


Signed-off-by: Abel Vesa <abel.vesa@linaro.org>