uboot-phytec

arm: dts: k3: Use single IOPAD macro file across K3 device family

Align the approach used for IOPAD macro definitions with Linux by
transitioning to a single pin control header file used across the K3
family of SoCs by renaming the existing am65 SoC-specific file to be
more generic and updating references accordingly. This will allow us
to avoid redundant definitions when adding new devices while enabling
to stay in sync with Linux more easily.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>