r2.6 cherry-pick request: Update ACL and oneDNN versions in mkl_aarch64 build

[penpornk]

This cherry-pick:

• Ensures the build flags are consistent on AArch64 between TF2.5 and 2.6
• Provides a number of bug fixes via ACL which impact the functioning of the convolutions under certain conditions.
• Fixes an issue with scaling ACL to high core counts (cost of spinning up many threads has been reduced).
• Keeps the oneDNN version consistent with x86.

Original PR #50757 was merged yesterday (Tue 7/13) but not in time for the nightly branch cut. So we'll have to wait for Wed 7/14 nightly tests.

[google-cla]

All (the pull request submitter and all commit authors) CLAs are signed, but one or more commits were authored or co-authored by someone other than the pull request submitter.

We need to confirm that all authors are ok with their commits being contributed to this project. Please have them confirm that by leaving a comment that contains only @googlebot I consent. in this pull request.

Note to project maintainer: There may be cases where the author cannot leave a comment, or the comment is not properly detected as consent. In those cases, you can manually confirm consent of the commit author(s), and set the cla label to yes (if enabled on your project).

ℹ️ Googlers: Go here for more info.

[penpornk]

Manually setting CLA to yes because this commit is from PR #50708, which is already merged into master.