The kernel-doc script identified documentation issues in the os_if
layer, so fix them.
Change-Id: I71dd7893776e4b49a80f6be186740967b08d3347
CRs-Fixed: 3341451
Previously when chains of BT and WLAN 2.4 GHz are separated,
hybrid mode will be used for BTC. Now adding fixed FDD mode
to fulfill different BTC scenarios.
Change-Id: I3a4d6919319f0f66e6b816566f24f4ac11b2c669
CRs-Fixed: 3244045