[Sound-open-firmware] For the newlib-xtensa, there is no tag

Hi, Dear newlib-xtensa maintainer,

Its link is https://github.com/jcmvbkbc/newlib-xtensa/tree/xtensa. For the latest commit b06f of xtensa branch, can maintainer push a tag on it? Here we are merging this branch of tool into Clear Linux, which need a consistent release including tar ball.

Best Regards & Thanks, Wang, Long