Remove sys/arm/ti/ti_scm_syscon.c due to the driver will interfere with other platforms than TI.
Add reference to dev/extres/syscon/syscon_generic.c
Reported by Thomas Skibo (ARM mailinglist)
oskar.holmlund_ohdata.se on Sep 10 2020, 8:01 PM.Authored by
Copy clk_div.c, clk_gate.c and clk_mux from sys/dev/extres/clk/ and extend them with options to use syscon if the parent are syscon, otherwise use clkdev.
Update ti_divider_clock.c/ti_gate_clock.c/ti_mux_clock.c to use "ti version" of clk_*.c.