Add a few instructions to setup-buildbot-devices.sh

- Uptime to know if the device restarted
- Kill stalled test dalvikvm processes.

Change-Id: I22e01ccc2d2c75a252e9fcee577e05b203e976c0
diff --git a/tools/setup-buildbot-device.sh b/tools/setup-buildbot-device.sh
index 7faf86e..d5b8989 100755
--- a/tools/setup-buildbot-device.sh
+++ b/tools/setup-buildbot-device.sh
@@ -30,3 +30,10 @@
 
 echo -e "${green}List properties${nc}"
 adb shell getprop
+
+echo -e "${green}Uptime${nc}"
+adb shell uptime
+
+echo -e "${green}Kill stalled dalvikvm processes${nc}"
+processes=$(adb shell "ps" | grep dalvikvm | awk '{print $2}')
+for i in $processes; do adb shell kill -9 $i; done