Settings: add a way to open blacklist settings externally

Opening the activity doesn't theme the switch bar - an alias works.

Change-Id: I78efb382f4f1f4d208f122fedb0d71a86b515405
Signed-off-by: Roman Birg <roman@cyngn.com>
Revert "wlan: Provide runtime option to enable or disable rssi threshold (settings)"

This reverts commit d6b8cbb12629562edad5915a1273f87438215c73.

RSSI threshold parameters are now user configurable.Below are the
parameters.
THRESHOLD_UNBLACKLIST_HARD_5G
THRESHOLD_UNBLACKLIST_SOFT_5G
THRESHOLD_UNBLACKLIST_HARD_24G
THRESHOLD_UNBLACKLIST_SOFT_24G
THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_5G
THRESHOLD_INITIAL_AUTO_JOIN_ATTEMPT_RSSI_MIN_24G
Hence reverting the gerrit

Change-Id: If40cc281f8d13a9c3255e4306db45bc3ef4002ac
CRs-Fixed: 757958
Signed-off-by: scott <scott@ubuntu>

Conflicts:
	res/xml/wifi_advanced_settings.xml