arm64: dts: ti: k3-am62a7-sk: add 1.4ghz opp entry

The AM62Ax reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
7.5 of the SoC's data sheet[0]. Append the 1.4Ghz entry to the OPP table
to enable this OPP

[0] https://www.ti.com/lit/ds/symlink/am62a3.pdf



Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-3-d-gole@ti.com


Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>