arm: dts: k3-am64: Sync DT with Linux v6.5-rc1

arm: dts: k3-am64: Sync DT with Linux v6.5-rc1

Sync all am642-evm/am642-sk related DT files
with Linux v6.5-rc1.

- drop timer1 in favor of main_timer0 in am64-main.dtsi.
Need to delete clock & power domain properties of
main_timer1 in -r5.dts else won't boot. This is because
timer_init is done during rproc_start to start System Firmware,
but we can't do any clock/power-domain operations before
System Firmware starts.
- same constraint applies to main_uart0
- drop cpsw3g custom DT property 'mac_efuse' and custom
DT node cpsw-phy-sel as driver picks these from standard
property/node.
- include board dts file in -r5 dts file to avoid duplication
of nodes. Include -u-boot.dtsi on top.
- drop duplicate nodes in -r5 dts and -u-boot.dtsi

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Tested-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>