fix: compiler warning `-Wswitch-default`

fix: compiler warning `-Wswitch-default`

Fixes warning "switch missing default case [-Wswitch-default]" which was
observed on gcc 11.3.0 on Ubuntu 22.04 LTS Linux 6.3.0 x86-64. This
warning was enabled by the flag `-Wswitch-default` (see:
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wswitch-default)

Signed-off-by: Gerrit Klein <therealthingy95@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: Iad356fd94b0b964a49c382c32a7d193b4ad43d35