[PATCH] arm: dts: Enable full 4GB LPDDR4

[Bryan Brattlof]

Hi Devarsh!

On February  6, 2023 thus sayeth Devarsh Thakkar:
> AM62A7-SK board has 4GB LPDDR4 Micron MT53E2G32D4DE-046 AUT:B part
> but only 2GB was enabled early.
> 
> Enable full 4GB memory by updating the latter 2GB memory region
> which gets mapped to 0x0880000000 i.e. DDR16SS0_SDRAM as referred in
> Table 2-1. AM62A Common SoC Memory of AM62Ax TRM [1].
> 
> [1] : https://www.ti.com/lit/zip/spruj16
> Logs: https://gist.github.com/devarsht/e85b6af89c01ddadb3a62f3e5f196af8
> 
> Signed-off-by: Devarsh Thakkar <devarsht at ti.com>
> ---

Thanks for getting this fixed! Unfortunately, to keep our device trees 
in sync with the linux kernel, I think it's best we get this accepted in 
linux before we pull this into uboot

Thanks Again
~Bryan