Check FWUPD_DEVICE_FLAG_UPDATABLE_HIDDEN when calculating the SUPPORTED flag
Check FWUPD_DEVICE_FLAG_UPDATABLE_HIDDEN when calculating the SUPPORTED flag

If the device is on battery power, the device will have at least one inhibit
and be in FWUPD_DEVICE_FLAG_UPDATABLE_HIDDEN state.

It's still supported, and it's misleading to suggest there are no updates
available. Just check both flags.

Fixes the 3rd half (sic) of https://github.com/fwupd/fwupd/issues/3156

fwupd/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,hughsie/fwupd,fwupd/fwupd,hughsie/fwupd,fwupd/fwupd