Modified camera framework stress tests.

Bug:130821349
Test: local run pass
'adb shell am instrument -w -r   -e waitIntervalMs 1000 -e timeout_msec
7200000 -e iterations 1 -e class
'com.android.mediaframeworktest.stress.Camera2RecordingTest#testBasicRecording'
com.android.mediaframeworktest/androidx.test.runner.AndroidJUnitRunner'

Change-Id: I2c2d84babd229b49cddeaf913d8e027189f2cbf6
(cherry picked from commit 909962d7edd765b9e6d080a839f0e465a5e1cd76)