RFR: 8257502: x86_32 build fails with new warnings after JDK-8256254

[Aleksey Shipilev]

Default `x86_32` build fails after JDK-8256254, because of the new warning:



 1291 | fatal("unexpected intrinsic id %d", iid);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~
      | |
      | vmIntrinsics::ID {aka vmIntrinsicID}
   ... (rest of output omitted)

The fix is pretty trivial: do the same as other arches. I think it would have been caught by GH actions in #1237, if they actually ran...

Testing:
 - [x] Linux x86_32 fastdebug build

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

Commit messages:
 - 8257502: x86_32 build fails with new warnings after JDK-8256254

Changes: https://git.openjdk.java.net/jdk/pull/1536/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1536&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8257502
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1536.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1536/head:pull/1536

PR: https://git.openjdk.java.net/jdk/pull/1536