Use 16 KB ELF alignment for shared native libraries

[mannodermaus]

Starting from the upcoming Android 15, the possibility for devices configured with a memory page size of 16 KB (rather than the default 4 KB) becomes available to OEMs. This has an impact on how native code must be packed into Android applications in order to prevent crashes at runtime when unaligned code is being loaded on these devices (ref #7894).

This PR applies the suggested migration steps for 16 KB ELF packaging to the output of realm-library. As I did not want to upgrade the entire stack to AGP 8.3+ and NDK 27+, it follows the "legacy path" that yields the same results: After building the native libraries with these flags, calls to Realm.init() no longer cause an immediate crash on devices/emulators configured with 16 KB page size.

Full disclaimer: This change also applies to the objectServer binaries, which we aren't using for our use case. I don't know if there are any ramifications of 16 KB page size for those binaries.

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[mannodermaus]

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[swankjesse]

This looks like a good fix.

[mannodermaus]

@swankjesse Thanks for the review! I added a changelog entry as well, but the PR may require another review pass because of that. If we don't foresee any issues with objectServer, then I suppose this would be safe to go in after.

[nhachicha]

Thanks @mannodermaus @swankjesse for the PR and review, I've introduced the same change in Kotlin in https://github.com/realm/realm-kotlin/pull/1788/files#diff-20de1441ff4c65066df79aa3e4da6a14c3705f68f5327ae1113591e135a6b3c0
I'll aim to do a release this week ~

[nhachicha]

@mannodermaus I just pushed 10.19.0 into maven central could you please give it a try?
Cheers.

[mannodermaus]

I can confirm that using 10.19.0 loads the Realm database correctly on a device with 16KB page size. Thank you!