IPACM: change src mac to bridge0

In SW-exception, the src mac of the DL traffic
to wifi-client will use bridge0's mac when device
is in bridge mode however in IPA-HW path, the src
mac of the DL traffic will use netdev's mac instead.
This failed in layer2 security check with some
special applications. The fix is to make src mac
consistent in both SW-exception/IPA-HW cases.

Change-Id: I2f248e2f3c265acfbecdeedac58e7e8dac36fec9
7 files changed
tree: 2a1f21c38f828868678b6309725ebffce96065fa
  1. ipacm/
  2. ipanat/
  3. configure.ac
  4. Makefile.am