- modify .gitignore compared to generated version by petalinux-create;
to avoid committing unnecessary files (binaries, toolchain leftovers, ...)
- set machine name to "zcu106-reva"
- disable "copy to tftpboot directory"
- enable FSBL detailed debug output
Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>