RESTRICT AUTOMERGE: Larger image for testConserveMemoryPlusHardware

Bug: 117893318
Bug: 119661117
Bug: 139649125
Test: cts tradefed: run cts -m CtsGraphicsTestCases
      -t android.graphics.cts.ImageDecoderTest#testConserveMemoryPlusHardware
      on Juno tNOx

The old image is 32 x 32. Some devices require the alignment to be
larger than this (e.g. 256), resulting in failing the test. Test using a
256 x 256 image so those devices can pass the test.

Change-Id: I7ea214edee81872739e191de6fd5030e72dc63da
Merged-In: I7ea214edee81872739e191de6fd5030e72dc63da
(cherry picked from commit 433762e70d6844c33cee21568a9e7f5e9e9c81b2)
2 files changed