There are some Linux distributions that gdb-multiarch doesn't work as
expected and debug section not start. Since AVARICE is dedicated to
AVR architecture, let's check first by the default tool then multiarch
version.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
While some users likely still use avr-gdb, more and more systems are starting
to use gdb-multiarch. In order to work in both cases, the script now just
checks which version is installed. (If both are installed, gdb-multiarch is
preferred.)
