RFR: 8369828: Generalize share/utilities/bytes.hpp [v2]

[Justin King]

> Implement portable `share/utilities/bytes.hpp` and remove CPU-specific headers.

Justin King has updated the pull request incrementally with one additional commit since the last revision:

  Qualify identifiers
  
  Signed-off-by: Justin King <jcking at google.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27801/files
  - new: https://git.openjdk.org/jdk/pull/27801/files/92248c44..6080b03a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27801&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27801&range=00-01

  Stats: 10 lines in 1 file changed: 0 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/27801.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27801/head:pull/27801

PR: https://git.openjdk.org/jdk/pull/27801