BTM_IsInquiryActive() function

* Function BTM_IsInquiryActive * Description This function returns a bit mask of the current inquiry state * Returns BTM_INQUIRY_INACTIVE if inactive (0) * BTM_LIMITED_INQUIRY_ACTIVE if a limited inquiry is active * BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active * BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active