Enable PM by default for rd_rw612_bga
on peripheral_ht and central_ht
samples
Those are the BLE samples running on
the CI, so it will be better to also
check the builds with PM and also
have some BLE apps to try PM with.
Signed-off-by: Yassine El Aissaoui <yassine.elaissaoui@nxp.com>