arm: dts: introduce am62a7 dtbs from linux kernel
Introduce the basic am62a7 SoC dtbs from the linux kernel along with the new am62a specific pinmux definition that we will use to generate the dtbs for the u-boot-spl and u-boot binaries
Co-developed-by: Vignesh Raghavendra vigneshr@ti.com Signed-off-by: Vignesh Raghavendra vigneshr@ti.com Signed-off-by: Bryan Brattlof bb@ti.com