Add missing adbOptions in runhat.

One of the adb commands in runhat was not using the adbOptions and would
fail if specifying a single serial device with multiple connected devices.

Change-Id: I804a6fccc51090cdc78dc2af76bbc0a24d843e3d
diff --git a/envsetup.sh b/envsetup.sh
index 2de2375..5460a0e 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -1060,7 +1060,7 @@
     fi
 
     # issue "am" command to cause the hprof dump
-    local sdcard=$(adb shell echo -n '$EXTERNAL_STORAGE')
+    local sdcard=$(adb ${adbOptions} shell echo -n '$EXTERNAL_STORAGE')
     local devFile=$sdcard/hprof-$targetPid
     #local devFile=/data/local/hprof-$targetPid
     echo "Poking $targetPid and waiting for data..."