EDI: Collect disk partition by kb (df -k)

Bug: 62238139
Test: Run cts
Change-Id: I584cdaec8fb4e726d0469402bf762cf4c6b8b884
diff --git a/common/device-side/device-info/src/com/android/compatibility/common/deviceinfo/StorageDeviceInfo.java b/common/device-side/device-info/src/com/android/compatibility/common/deviceinfo/StorageDeviceInfo.java
index dafff35..767f1d9 100644
--- a/common/device-side/device-info/src/com/android/compatibility/common/deviceinfo/StorageDeviceInfo.java
+++ b/common/device-side/device-info/src/com/android/compatibility/common/deviceinfo/StorageDeviceInfo.java
@@ -62,7 +62,7 @@
     private List<String> scanPartitions() {
         List<String> partitionList = new ArrayList<>();
         try {
-            Process df = new ProcessBuilder("df").start();
+            Process df = new ProcessBuilder("df -k").start();
             Scanner scanner = new Scanner(df.getInputStream());
             try {
                 while (scanner.hasNextLine()) {