arm64: dts: ti: k3-pinctrl: Add the remaining macros

arm64: dts: ti: k3-pinctrl: Add the remaining macros

Add the drive strength, schmitt trigger enable macros to pinctrl file.
Add the missing macros for DeepSleep configuration control referenced
from "Table 14-8769. Description Of The Pad Configuration Register Bits"
in AM62Px TRM[0].
Add some DeepSleep macros to provide combinations that can be used
directly in device tree files example PIN_DS_OUTPUT_LOW that
configures pin to be output and also sets its value to 0.

[0] https://www.ti.com/lit/pdf/SPRUJ83

Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>
Reviewed-by: Kendall Willis <k-willis@ti.com>
Link: https://patch.msgid.link/20250909044108.2541534-4-a-kaur@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>