RFR: 8273539: [PPC64] gtest build error after JDK-8264207

[Martin Doerr]

`macroAssembler.inline.hpp` needs to be included to fix the build. Definition of e.g. `nop()` is not visible otherwise. See JBS bug for build error message.

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Commit messages:
 - 8273539: [PPC64] gtest build error after JDK-8264207

Changes: https://git.openjdk.java.net/jdk/pull/5438/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5438&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273539
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5438.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5438/head:pull/5438

PR: https://git.openjdk.java.net/jdk/pull/5438