[riscv-port-jdk17u:riscv-port] RFR: 8294083: RISC-V: Minimal build failed with --disable-precompiled-headers [v2]

[Gui Cao]

> Please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8294083](https://bugs.openjdk.org/browse/JDK-8294083). 
> Compared to the original patch, the addition of including the corresponding header (gc/shared/collectedHeap.hpp) fix the invalid use of incomplete type 'class CollectedHeap' as follows:
> 
> === Output from failing command(s) repeated here ===
> * For target hotspot_variant-minimal_libjvm_objs_c1_Runtime1_riscv.o:

Gui Cao has updated the pull request incrementally with one additional commit since the last revision:

  backport 8295468: RISC-V: Minimal builds are broken

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

Changes:
  - all: https://git.openjdk.org/riscv-port-jdk17u/pull/6/files
  - new: https://git.openjdk.org/riscv-port-jdk17u/pull/6/files/8858c65a..e57adee0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=riscv-port-jdk17u&pr=6&range=01
 - incr: https://webrevs.openjdk.org/?repo=riscv-port-jdk17u&pr=6&range=00-01

  Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/riscv-port-jdk17u/pull/6.diff
  Fetch: git fetch https://git.openjdk.org/riscv-port-jdk17u pull/6/head:pull/6

PR: https://git.openjdk.org/riscv-port-jdk17u/pull/6