RFR: 8319556: Harmonize interface formatting in the FFM API [v2]

[Per Minborg]

> This PR proposes to remove two `permits` declarations where the line overflows the stipulated maximum column with. Also, it proposes to harmonize the layout of `permit` formatting so they are the the same throughout the API.
> 
> This PR might be perceived as over worked but I think it nice to get consistency across the API now that we go final.

Per Minborg has updated the pull request incrementally with two additional commits since the last revision:

 - Remove redundandt space
 - Use permits reformatting only when needed

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/16528/files
  - new: https://git.openjdk.org/jdk/pull/16528/files/0d5774c8..bc07305d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16528&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16528&range=00-01

  Stats: 16 lines in 7 files changed: 0 ins; 8 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/16528.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16528/head:pull/16528

PR: https://git.openjdk.org/jdk/pull/16528