Bluetooth: Implement dynamic blacklist method for role switch

 - Blacklist the device if it's rejected the role switch for
   max number of times.Same is added to the iot_devlist.conf
   file.

-  Maximum number of failed (BTM_MAX_SW_ROLE_FAILED_ATTEMPTS)
   attempts set to 3 and it is configurable.

-  Same blacklisted device is referred by the BTM module when
   any other module like profile is requesting for role switch
   and BTM module returns BTM_REPEATED_ATTEMPTS as the switch
   role status.

-  There is option to retry for role switch even though the
   device is blacklisted and it can be controlled by feature
   flag BTM_SAFE_REATTEMPT_ROLE_SWITCH. And by default it is
   enabled.

CRs-Fixed: 831542
Change-Id: I570e1539578e60901794941ca46f0722e368a954
13 files changed