arm: mach-k3: am62: fix 2nd mux option of clkout0

Fix second mux option of clkout0 which should really be
DEV_BOARD0_CLKOUT0_IN_PARENT_HSDIV4_16FFT_MAIN_2_HSDIVOUT1_CLK10
rather than twice the same according to [1].

[1] https://software-dl.ti.com/tisci/esd/latest/5_soc_doc/am62x/clocks.html#clocks-for-board0-device



Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>