RFR: 8349665: Make clean removes module-deps.gmk [v2]

[Magnus Ihse Bursie]

> After [JDK-8292944](https://bugs.openjdk.org/browse/JDK-8292944), we only generate module-deps.gmk once at the start of Init.gmk. This causes `make clean <some other target>` to first generate and then remove module-deps.gmk after which the rest of the build proceeds without a module-deps.gmk, causing problems with dependencies.

Magnus Ihse Bursie has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Fix it for real
 - Merge branch 'master' into fix-clean-module-deps
 - 8349665: Make clean removes module-deps.gmk

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24406/files
  - new: https://git.openjdk.org/jdk/pull/24406/files/f8a50cd1..dad99084

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24406&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24406&range=00-01

  Stats: 407553 lines in 4726 files changed: 155931 ins; 228355 del; 23267 mod
  Patch: https://git.openjdk.org/jdk/pull/24406.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/24406/head:pull/24406

PR: https://git.openjdk.org/jdk/pull/24406