git: openjdk/jdk21u-dev: master: 8340804: doc/building.md update Xcode instructions to note that full install is required

[George Adams]

Changeset: 57624602
Branch: master
Author:    George Adams <gdams at openjdk.org>
Date:      2024-10-05 22:04:01 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/576246021ab3c4c6e50e345d6fa94e0779a8fc84

8340804: doc/building.md update Xcode instructions to note that full install is required

Reviewed-by: phh
Backport-of: b639661e797fb52ce32ce397a153c886fdc40f53

! doc/building.html
! doc/building.md