IRIS XO mode can be configured thru module parameter; and it can also be auto detected. Add an API to expose the IRIS XO mode set. WLAN driver can use this API for it's XO specific operation. Change-Id: If40ae715f5e400e13a6fc9588d2bd144958ee8c2 Signed-off-by: Sameer Thalappil <sameert@codeaurora.org> Signed-off-by: Iliyan Malchev <malchev@google.com> Conflicts: include/linux/wcnss_wlan.h