Add --lldb to gdbclient.py

Test: `gdbclient.py --lldb -r /system/bin/toybox` and try `b main` `c`
Test: `/data/local/tmp/arm64-lldb-server gdbserver :5039 /system/bin/toybox` and `gdbclient.py --lldb -p 4909`
Change-Id: If7b6895e9c778cdee3764a4058cf70238bdd6b8a
1 file changed