BTM_ReadOobData() function

* Function BTM_ReadOobData * Description This function is called to parse the OOB data payload * received over OOB (non-Bluetooth) link * Parameters: p_data - the location for OOB data * eir_tag - The associated EIR tag to read the data. * *p_len(output) - the length of the data with the given tag. * Returns the beginning of the data with the given tag. * NULL, if the tag is not found.