Factorize nifs for OTP crypto module

[pguyot]

Move implementation from ESP32's platform_nifs.c to otp_crypto.c and make it available to all
platforms using mbedtls.

Alter Pico's mbedtls configuration to handle the ciphers we support

These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later

[bettio]

As a general preference for future changes, when a PR contains both refactoring and fixes I rather prefer dividing it in 2 different commits, so the fix is more evident compared to "background" refactoring changes. This is specially useful when doing a huge code block move, since it is not possible to tell what changed without comparing side by side different files.

[pguyot]

As a general preference for future changes, when a PR contains both refactoring and fixes I rather prefer dividing it in 2 different commits, so the fix is more evident compared to "background" refactoring changes. This is specially useful when doing a huge code block move, since it is not possible to tell what changed without comparing side by side different files.

Very true. Let's try to do it here. I'll open a separate PR for the iv-compatibilitty fix.

[bettio]

CodeQL fails with: "Completed in 3s — 1 configuration not found".

[bettio]

Everything good here, just few missing things.
Let's mention in our changelog:

• that now hashing functions require mbedTLS instead of OpenSSL
• that crypto functions are available also for generic_unix and rp2040 when using mbedTLS

[pguyot]

CodeQL fails with: "Completed in 3s — 1 configuration not found".

Was it solved with a rerun? I can't find this error.

[bettio]

CodeQL fails with: "Completed in 3s — 1 configuration not found".

Was it solved with a rerun? I can't find this error.

Now it is gone.