RFR: 8366543: Clean up include headers in numberSeq [v2]

[Albert Mingkun Yang]

> Trivial changing to use the correct includes in `numberSeq.hpp/cpp`.
> 
> Test: tier1

Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:

  review

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27031/files
  - new: https://git.openjdk.org/jdk/pull/27031/files/d45e5471..792f98e3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27031&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27031&range=00-01

  Stats: 2 lines in 2 files changed: 1 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27031.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27031/head:pull/27031

PR: https://git.openjdk.org/jdk/pull/27031