RFR: 8278086: [REDO] ImageIO.write() method will throw IndexOutOfBoundsException

[Jayathirth D V]

This is redo of https://bugs.openjdk.org/browse/JDK-8262297
In https://bugs.openjdk.org/browse/JDK-8262297 we added similar change but we didnt allow 15bpp image in BMP, because of which many tests which were using USHORT_555_RGB format were failing as reported at https://bugs.openjdk.org/browse/JDK-8278047

There is ambiguity on whether we should support 15bpp BMP encoding also or not as captured in JBS : https://bugs.openjdk.org/browse/JDK-8278086?focusedCommentId=14521952&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14521952

Since adding tighter condition to only allow 0, 1, 4, 8, 16, 24 and 32 bpp is causing many failures. I have modified the check to allow 15bpp also.

-------------

Commit messages:
 - 8278086: [REDO] ImageIO.write() method will throw IndexOutOfBoundsException

Changes: https://git.openjdk.org/jdk/pull/10419/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10419&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8278086
  Stats: 92 lines in 2 files changed: 89 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/10419.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10419/head:pull/10419

PR: https://git.openjdk.org/jdk/pull/10419