Update OCSP support answer in FAQ

[ChristopheLux]

Clarified OCSP support details for Application Gateway.

[prmerger-automator]

@ChristopheLux : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[prmerger-automator]

@ChristopheLux : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit 25b78c5:

✅ Validation status: passed

File	Status	Preview URL	Details
articles/application-gateway/application-gateway-faq.yml	✅Succeeded

For more details, please refer to the build report.

[prmerger-automator]

PRMerger Results

Issue	Description
Yaml File(s)	This PR includes changes to .yml file(s) owned by another author.

[v-regandowner]

@mbender-ms

Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[mbender-ms]

Thanks for the contribution @ChristopheLux.

Please use the suggest change to your PR.

[learn-build-service-prod]

Learn Build status updates of commit f09b1d2:

✅ Validation status: passed

File	Status	Preview URL	Details
articles/application-gateway/application-gateway-faq.yml	✅Succeeded

For more details, please refer to the build report.

[prmerger-automator]

PRMerger Results

Issue	Description
Yaml File(s)	This PR includes changes to .yml file(s) owned by another author.

[v-dirichards]

@mbender-ms Would you add a comment to indicate what action to take on this PR?

Thanks!