ASACORE-985 Remaining work necessary for the AllJoyn C API callbacks calling convention

Signed-off-by: Marius Niculescu <mariusni@microsoft.com>
Change-Id: Ie83ee19747adeaaaaf37f2d2aac907c8b1089aac
Merge "ASACORE-985 Remaining work necessary for the AllJoyn C API callbacks calling convention"