x/devtools: Use mojodev instead of mojo-dev
x/devtools: Use mojodev instead of mojo-dev

The mojo dev profile was renamed from "mojo-dev" to "mojodev", so the
corresponding checks and comments should change too.

MultiPart: 1/3
Change-Id: I2fd1e6740a3c6924f1dbcbc17eee3bc338819a35

vanadium/go.devtools,vanadium/go.devtools,vanadium/go.devtools