[OpenJDK 2D-Dev] RFR: 8264318 Lanai: DrawHugeImageTest.java fails on apple M1

[Denis Konoplev]

Check if blit sizes are less than MTL_GPU_FAMILY_MAC_TXT_SIZE.

It's safe since we copy tile from the image with memcpy. 
// copy src pixels inside src bounds to buff
for (int row = 0; row < sh; row++) {
    memcpy(buff.contents + (row * sw * srcInfo->pixelStride), raster, sw * srcInfo->pixelStride);
    raster += (NSUInteger)srcInfo->scanStride;
}

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Commit messages:
 - 8264318: DrawHugeImageTest.java fails on apple M1

Changes: https://git.openjdk.java.net/jdk/pull/3369/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3369&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8264318
  Stats: 5 lines in 1 file changed: 1 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3369.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3369/head:pull/3369

PR: https://git.openjdk.java.net/jdk/pull/3369