Comply with pmOS, which prefers to store hwdb in /etc. openrc works
differently, or at least the packaging in pmOS/Alpine does, so manually
recompile hwdb at package installation time in that case.
Fixes: a99f680468 ("device-blackberry-key2-generic: additional unl0kr fixes")
Signed-off-by: Sicelo A. Mhlongo <absicsz@gmail.com>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/9335>