adb: add ls_v2.

Add a 64-bit size/time variant of `adb ls`.

Bug: http://b/122955521
Test: adb shell dd if=/dev/zero bs=1m count=8192 of=/data/local/tmp/big
Test: adb pull /data/local/tmp/big
Test: adb ls /data/local/tmp
Change-Id: I6ff857239995bc7b5c5f8dfd65a36fad41e67d85
diff --git a/transport.cpp b/transport.cpp
index 3d1d620..bebd27c 100644
--- a/transport.cpp
+++ b/transport.cpp
@@ -66,6 +66,7 @@
 const char* const kFeatureShell2 = "shell_v2";
 const char* const kFeatureCmd = "cmd";
 const char* const kFeatureStat2 = "stat_v2";
+const char* const kFeatureLs2 = "ls_v2";
 const char* const kFeatureLibusb = "libusb";
 const char* const kFeaturePushSync = "push_sync";
 const char* const kFeatureApex = "apex";
@@ -1044,6 +1045,7 @@
             kFeatureShell2,
             kFeatureCmd,
             kFeatureStat2,
+            kFeatureLs2,
             kFeatureFixedPushMkdir,
             kFeatureApex,
             kFeatureAbb,