Fix deploy-olm failing on docker build without --load

[kaovilai]

Why the changes were made

This is because docker build has become aliased to docker buildx build whose default no longer load build result to docker images which mean subsequent call to docker-push target fails, such as when make deploy-olm

We are getting rid of error highlighted in red like below.

WARNING: No output specified with docker-container driver. Build result will only remain in the build cache. To push result image into registry use --push or to load image into docker use --load
/Applications/Xcode.app/Contents/Developer/usr/bin/make docker-push IMG=ttl.sh/oadp-operator-bundle-a5cd6de2:1h
docker push ttl.sh/oadp-operator-bundle-a5cd6de2:1h
-Error response from daemon: failed to find image ttl.sh/oadp-operator-bundle-a5cd6de2:1h: ttl.sh/oadp-operator-bundle-a5cd6de2:1h: image not known
-make[2]: *** [docker-push] Error 1
-make[1]: *** [bundle-push] Error 2

https://docs.docker.com/reference/cli/docker/buildx/build/#load

How to test the changes made

checkout and see that podman build can also accept this param and not fail. (I did, it worked.)

[kaovilai]

/test images

[kaovilai]

/test images

[weshayutin]

thanks @kaovilai

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kaovilai, shubham-pampattiwar, weshayutin

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• OWNERS [kaovilai,shubham-pampattiwar]

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[openshift-ci-robot]

/retest-required

Remaining retests: 0 against base HEAD 06081c0 and 2 for PR HEAD 4974e15 in total

[kaovilai]

/retest-required

[openshift-ci]

@kaovilai: all tests passed!

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[kaovilai]

/cherry-pick oadp-1.4

[openshift-cherrypick-robot]

@kaovilai: #1593 failed to apply on top of branch "oadp-1.4":

Applying: Newer docker cli expects `--load` on build
Using index info to reconstruct a base tree...
M	Makefile
Falling back to patching base and 3-way merge...
Auto-merging Makefile
CONFLICT (content): Merge conflict in Makefile
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config advice.mergeConflict false"
Patch failed at 0001 Newer docker cli expects `--load` on build

In response to this:

/cherry-pick oadp-1.4

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