FYI: 8243538: Use glyphCacheLCD for LCD text rendering

[Jayathirth D V]

Present cache implementation for LCD text rendering is not using any caching and is same as non-cache implementation.

We need to implement and use glyphCacheLCD.

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Commit messages:
 - 8243538: Use glyphCacheLCD for LCD text rendering

Changes: https://git.openjdk.java.net/lanai/pull/38/files
 Webrev: https://webrevs.openjdk.java.net/lanai/38/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8243538
  Stats: 90 lines in 1 file changed: 3 ins; 70 del; 17 mod
  Patch: https://git.openjdk.java.net/lanai/pull/38.diff
  Fetch: git fetch https://git.openjdk.java.net/lanai pull/38/head:pull/38

PR: https://git.openjdk.java.net/lanai/pull/38