dt-bindings: ti-serdes-mux: Add defines for J721S2 SoC

There are 4 lanes in the single instance of J721S2 SERDES. Each SERDES
lane mux can select upto 4 different IPs. Define all the possible
functions.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
1 file changed