arm64: dts: ti: k3-j784s4-main: Add CPSW2G and CPSW9G nodes

J784S4 SoC has MAIN CPSW2G and CPSW9G instances of the CPSW
Ethernet Switch. CPSW2G has 1 external port and 1 host port
while CPSW9G has 8 external ports and 1 host port.

Add device-tree nodes for MAIN CPSW2G and CPSW9G and disable
them by default. MAIN CPSW2G will be enabled in the board file
while device-tree overlays will be used to enable CPSW9G.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Chintan Vankar <c-vankar@ti.com>
Link: https://lore.kernel.org/r/20240502091002.3659435-3-c-vankar@ti.com


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