RDKB-63722: Build fix for ssl crypto error in platforms with lower ssl version

[yogeswaransky]

Reason for change: Compilation Error resolved in XE2V2 Build because this device build was using an older version probable 1.0.x. . Actually OPENSSL_thread_stop() was introduced only in OpenSSL 1.1.0. We used this api for release all OpenSSL per-thread state (ERR stack, cached allocations) at the end of the worker thread. Its compatible with all RDKB device except
Test Procedure: please refer the ticket comments
Risks: Medium

[Copilot]

Pull request overview

This PR addresses a build failure related to OpenSSL “crypto” symbols by adding the appropriate OpenSSL header include in the HTTP multi-curl implementation.

Changes:

• Add #include <openssl/crypto.h> to ensure OpenSSL crypto APIs used in this file are properly declared during compilation.

[Copilot]

Pull request overview

This PR aims to resolve an OpenSSL-related build issue in the HTTP multi-curl implementation by adjusting OpenSSL header usage and per-thread cleanup logic.

Changes:

• Added an OpenSSL header include (<openssl/crypto.h>).
• Modified OpenSSL per-thread cleanup in http_pool_get() by disabling OPENSSL_thread_stop() and calling ERR_remove_thread_state(NULL) instead.

[Copilot]

Pull request overview

This PR addresses an SSL/OpenSSL build issue by making OpenSSL per-thread cleanup compatible across OpenSSL versions.

Changes:

• Added <openssl/crypto.h> include to support OpenSSL thread cleanup APIs.
• Wrapped OPENSSL_thread_stop() behind an OpenSSL version check and added a fallback to ERR_remove_thread_state(NULL) for older OpenSSL.
• Adjusted per-thread OpenSSL cleanup in both http_pool_get and http_pool_post.