RFR: 8366905: Store AdapterBlob pointer in AdapterHandlerEntry [v2]

[Ashutosh Mehra]

> This PR removes the need to store entry point addresses in AdapterHandlerEntry by storing a direct pointer to AdapterBlob instead. Entry point addresses can be computed on the fly from the entry point offsets stored in AdapterBlob.

Ashutosh Mehra 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 five additional commits since the last revision:

 - Merge branch 'master' into store-blob-pointer-adapterhandlerentry-v2
 - Remove unused method and change numeric constants to enums
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Address review comments
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Do not call generate_i2c2i_adapters() on zero
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>
 - Store pointer to AdapterBlob in AdapterHandlerEntry
   
   Signed-off-by: Ashutosh Mehra <asmehra at redhat.com>

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/27101/files
  - new: https://git.openjdk.org/jdk/pull/27101/files/cad0d0c3..fff99163

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27101&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27101&range=00-01

  Stats: 55244 lines in 1448 files changed: 29703 ins; 15980 del; 9561 mod
  Patch: https://git.openjdk.org/jdk/pull/27101.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27101/head:pull/27101

PR: https://git.openjdk.org/jdk/pull/27101