RFR: 8301190: [vectorapi] The typeChar of LaneType is incorrect when default locale is tr

[Glavo]

When the default Locale is tr, the letter `i` will be converted to `İ` (U+0130) by `toUpperCase()`. This causes the assertion to fail.

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Commit messages:
 - 8301190: [vectorapi] The typeChar of LaneType is incorrect when default locale is tr

Changes: https://git.openjdk.org/jdk/pull/12238/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12238&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301190
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/12238.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12238/head:pull/12238

PR: https://git.openjdk.org/jdk/pull/12238