Build Linux for wp76

I am trying to do the same thing. I downloaded Legato Linux Distribution from here:

https://source.sierrawireless.com/resources/legato/download/legatolinuxdist9x15/

and trying to build it but getting below error:

warlord@ubuntu:~/legato_source/yocto$ . ./poky/oe-init-build-env
warlord@ubuntu:~/legato_source/yocto/build$
warlord@ubuntu:~/legato_source/yocto/build$ bitbake -c listtasks linux-quic
Loading cache: 100% |###############################################################################################################################| ETA: 00:00:00
Loaded 1288 entries from dependency cache.
ERROR: Nothing PROVIDES ‘linux-quic’

Summary: There was 1 ERROR message shown, returning a non-zero exit code.

Am I missing some steps?

Thanks,
Yogesh