[WifiTetheringTest] Increased the file download size

CHERRY PICKED CHANGES FROM AOSP

Bug: 67712244
Test: Verified the changes
Change-Id: I2ef162f2bec24cce4d90d8d93112af0425453748
Merged-In: I4763f961be58ed1920762091aa3ed4117051330b
1 file changed
tree: d82adb2f6e4957f58ec6925c268b4d2436e8c6d2
  1. acts/
  2. tools/
  3. Android.mk
  4. PREUPLOAD.cfg