bridge: Don't use device name as bridge member name

bridge: Don't use device name as bridge member name

The bridge name is a copy of the device name; but the device name can
change which is the case when an aliased interface is used as bridge member.
This will result into unwanted side effects like bridge reload triggering
a topology change effect after doing network reload; therefore use the
configured ifname as fixed bridge member name.
Also don't display bridge member devices which are hidden

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>