arm64: dts: ti: Add PWM and ECAP overlay for J722S-EVM

commit 14bd8dc1c7b289feac4da65d9783f8e78980a33c from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git



The J722S-EVM has 3 PWM outputs and 1 ECAP output routed
to the J28 connector. This overlay will set the appropriate
pinmux and enable PWM and ECAP on the pins.

Currently enabled PWM output on J28: 29, 31, 33 pins
and ECAP output on J28: 32 pin

Signed-off-by: Bhavya Kapoor <b-kapoor@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>