clk: vc7: Use device_get_match_data() instead of of_device_get_match_data()

Use device_get_match_data() which, unlike of_device_get_match_data(),
is compatible with other firmware interfaces than just OF.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Link: https://lore.kernel.org/r/20230514191959.706269-2-marek.vasut+renesas@mailbox.org


Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>