RFR: 8349665: Make clean removes module-deps.gmk [v3]

[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 incrementally with two additional commits since the last revision:

 - Fix regression of JDK-8292944
 - Update per review request

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/24406/files
  - new: https://git.openjdk.org/jdk/pull/24406/files/dad99084..eea2b709

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=24406&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=24406&range=01-02

  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 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