RFR: 8247772: Lanai: Several jtreg tests fails with assertion validateText…

[Prasanta Sadhukhan]

…ureDimensions: 759: failed assertion 'MTLTextureDescriptor has width greater than maximum allowed size of 16384'

Check texture width against MaxTextureSize of 16384 before using during MTL texture creation

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Commit messages:
 - 8247772: Lanai: Several jtreg tests fails with assertion validateTextureDimensions: 759: failed assertion 'MTLTextureDescriptor has width greater than maximum allowed size of 16384'

Changes: https://git.openjdk.java.net/lanai/pull/59/files
 Webrev: https://webrevs.openjdk.java.net/lanai/59/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8247772
  Stats: 16 lines in 3 files changed: 9 ins; 6 del; 1 mod
  Patch: https://git.openjdk.java.net/lanai/pull/59.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/59/head:pull/59

PR: https://git.openjdk.java.net/lanai/pull/59