[jdk8u-dev] RFR: 8336480: [8u] Incorrect comment in bytecodeInterpreter_aarch64.inline.hpp

[SendaoYan]

Hi all,
Modify inaccurate comments in the file `hotspot/src/cpu/aarch64/vm/bytecodeInterpreter_aarch64.inline.hpp`. This file has been deleted by [JDK-8074457](https://bugs.openjdk.org/browse/JDK-8074457) in jdk9, so this incorrect comments only exists in jdk8u.
Trivial fix, no risk.

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Commit messages:
 - 8336480: [8u] Incorrect comment in bytecodeInterpreter_aarch64.inline.hpp

Changes: https://git.openjdk.org/jdk8u-dev/pull/550/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=550&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8336480
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/550.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev.git pull/550/head:pull/550

PR: https://git.openjdk.org/jdk8u-dev/pull/550