Clock related dts changes for omaps for v4.16 merge window

This branch contains a series of dts changes from Tero Kristo to
start using clkctrl clocks.

Note that this branch is based on a merge of omap-for-v4.16/soc-signed
and an immutable commit from Tero Kristo fe7020e64f04 ("clk: ti: omap4:
clkctrl data fixes for opt-clocks") that is also in clk-next.
-----BEGIN PGP SIGNATURE-----
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=uhHY
-----END PGP SIGNATURE-----