The suggested default value of PS1 in SDK may changes according to different customers. Reset the default value that prepend a SDK prompt such as "(wrlinuxsdk-x86_64-aarch64)" to original PS1 which is the value before source the SDK env file. It could keep PS1 untouched by clearing variable "SDK_PS1".
I followed the "Building Binary Base Container, SDK and Package Feeds from Source" section followed by " Installing and Running the Linux Assembly Tool"
