* Update README.md to also list Z-Stack 3.0.x on CC2538
As per suggestion in https://github.com/Koenkk/Z-Stack-firmware/issues/148 README.md was missing a listing for the newly added support for Z-Stack 3 on CC2538 which was added with https://github.com/Koenkk/Z-Stack-firmware/pull/144 and discussed in https://github.com/Koenkk/zigbee2mqtt/issues/1568
@Koenkk @reverieline Please understand that some information about CC2538 support might still be missing as I note below:
Please note that I am not sure if Z-Stack 3.0.x is only supported on a module with on CC2538 + CC2592 or if it is also supported on modules with only CC2538 without an amplifier chip or a module with CC2538 and the CC2591 amplifier chip?
I was not either sure about supported Direct children or the max values for total numbers of Zigbee devices supported by CC2538 in the Z-Stack 3.0.x firmware which has now been added?
In addition, please also note that I am not sure if Zigbee 3.0 coordinator is now actually recommended on a CC2538 module as well, or if it is still only recommended on CC26X2R1 and CC1352P_2 so I did not change that line about such recommendation. CC2538 might be powerful enough to be recommended as well or?
PS: @reverieline Off-topic here but I was wondering if a version of Z-Stack 1.2 could be made for CC2538 too based on your FW?
* Update README.md
Co-authored-by: Koen Kanters <koenkanters94@gmail.com>
