CTS fix: match test to CDD memory requirements

The test seems to reflect the Android 5.1 CDD requirements and
not necessarily the Android 5.0 CDD requirements section 3.7.

(http://source.android.com/compatibility/downloads.html#android-50)

Bug: 25651775
Change-Id: I449083ea9ec00e795812861d0a6d005324390ebe
1 file changed