qsap: Add APIs to control and manage bridge interface.

This adds APIs to trigger create, delete, interface up and interface
down commands on bridge interface.
It uses following IOCTLs for sending command to linux kernel:
Add bridge iface: SIOCBRADDBR
Remove bridge iface: SIOCBRDELBR
Mark iface up/down: SIOCGIFFLAGS

CRs-Fixed: 2080924
Change-Id: I3d34dc16e9ca82dc4b550cbc83fa4120c80ad54c
2 files changed
tree: bc35e40748be46d594516fdaf020a2a1b1b1770e
  1. softap/