RFR: 8370920: [s390] C2: add instruction size in s390.ad file [v2]

[Harshit470250]

> This pr adds the size of the match rule nodes.
> 
> There were a lot of nodes for which the size was variable, for those node I have taken the maximum possible size.

Harshit470250 has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 12 additional commits since the last revision:

 - Merge branch 'openjdk:master' into master
 - Merge remote-tracking branch 'origin/master'
 - remove whitespace
 - Resolved a bug
 - remove TODO comments
 - final size added
 - Final sizes
 - oop_decoder and load_const_optimized
 - error fix and added more sizes
 - upto line 9078
 - ... and 2 more: https://git.openjdk.org/jdk/compare/212d2340...4e02e366

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28054/files
  - new: https://git.openjdk.org/jdk/pull/28054/files/c253449a..4e02e366

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28054&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28054&range=00-01

  Stats: 49592 lines in 393 files changed: 25497 ins; 20831 del; 3264 mod
  Patch: https://git.openjdk.org/jdk/pull/28054.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28054/head:pull/28054

PR: https://git.openjdk.org/jdk/pull/28054