Notes for gcc-xtensa-lx106 - reproducible builds result

Version annotated: 9
Identified issues:
Identifier: paths_vary_due_to_usrmerge
Description eg. /bin/ vs /usr/bin/ or /lib vs. /usr/lib
Identifier: bin_sh_is_bash
Description Various issues that are caused from whether /bin/sh is dash or bash.
 

Our notes about issues affecting packages are stored in notes.git and are targeted at packages in Debian in 'unstable/amd64' (unless they say otherwise).