Some WiFi hotspots send excessive multicast IPv6 ping requests which
cause considerable power drain. Thus, drop all multicast ICMPv6 ping
requests while the device is in doze mode.
Bug: 66930077
Test: runtest -x tests/net/java/android/net/apf/ApfTest.java
Test: manual - compared generated APF bytecode using apf_disassembler
Test: manual - force idle mode while sending multicast pings to device
Change-Id: I25dbf99985cf4413b4d0e3920d281fe6d663197a
(cherry picked from commit e2c70f8a60)
5be71dcb03