This redefines macros to use "/data/vendor/wifi/hostapd/" path for
read/write/update hostapd configuration parameters.
Additionaly, it creates libqsap_headers which other modules can use
to refer/include *.h files in this project.
Change-Id: Ice64e5a56a69882b001b2f3bcd99ba0f91ffc8a2
CRs-Fixed: 2244795