Customer is reporting that our documentation is inconsistent TF-A git repo URL's

the repo listed for cloning the TFA firmware is pretty inconsistent.  Not that it matters much but it is a bit confusing.

Two different urls in the SDK docs:

* https://software-dl.ti.com/processor-sdk-linux/esd/AM62AX/11_01_07_05/exports/docs/linux/Foundational_Components_ATF.html

git clone[ https://github.com/TexasInstruments/arm-trusted-firmware.git|https://github.com/TexasInstruments/arm-trusted-firmware.git]
* https://software-dl.ti.com/processor-sdk-linux/esd/AM62AX/11_01_07_05/exports/docs/devices/AM62AX/linux/Release_Specific_Release_Notes.html
Repo: https://git.trustedfirmware.org/plugins/gitiles/TF-A/trusted-firmware-a.git/

And the yocto recipe uses another more official one.
* sources/meta-ti/meta-ti-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-ti.inc

SRC_URI_TRUSTED_FIRMWARE_A = "git://git.trustedfirmware.org/TF-A/trusted-firmware-a.git;protocol=https"

e2e: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1559528/am62a7-sdk-11-1-u-boot-ipc_echo-firmware-missing-from-prebuilts-directory 

Fix: https://github.com/TexasInstruments/processor-sdk-doc/pull/483