RFR: 8287155: Additional make typos

[Magnus Ihse Bursie]

Testing ispell + shell magic to locate typos. It worked, but is not scalable to the entire JDK. :-( Keep the fixes for the problems found in the make directory, though.

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Commit messages:
 - 8287155: Additional make typos

Changes: https://git.openjdk.java.net/jdk/pull/8837/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8837&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8287155
  Stats: 15 lines in 13 files changed: 0 ins; 0 del; 15 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8837.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8837/head:pull/8837

PR: https://git.openjdk.java.net/jdk/pull/8837