RFR: 8353009: Document target selection flag for Windows AArch64 builds [v4]

[Saint Wesonga]

> The target selection configuration flag for Windows AArch64 should be added to the build documentation for improved discoverability and completeness.

Saint Wesonga has updated the pull request incrementally with two additional commits since the last revision:

 - Add Visual Studio Build Tools setup instructions
 - Revert "Add instructions for a native Windows AArch64 build"
   
   This reverts commit ce4a5914f40d315f39c9593bd9cdb8aa53e33ca0.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24267/files
  - new: https://git.openjdk.org/jdk/pull/24267/files/ce4a5914..01d7742c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24267&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24267&range=02-03

  Stats: 29 lines in 2 files changed: 15 ins; 2 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/24267.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24267/head:pull/24267

PR: https://git.openjdk.org/jdk/pull/24267