Roll BoringSSL from 53844eb8bb2a to 875810f3c416 (2 revisions)

https://boringssl.googlesource.com/boringssl.git/+log/53844eb8bb2a..875810f3c416

2025-12-15 rpolzer@google.com EVP_AEAD: implement sealv/openv for the TLS ciphers.
2025-12-15 rpolzer@google.com EVP_AEAD: implement sealv/openv for ChaCha20-Poly1305.

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/boringssl-dart-sdk
Please CC dart-engprod@google.com,dart-vm-gardener@grotations.appspotmail.com,dart-vm-team@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in BoringSSL: https://crbug.com/boringssl/new
To file a bug in Dart SDK: https://github.com/dart-lang/sdk/issues

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: dart-vm-gardener@grotations.appspotmail.com
Change-Id: I157a7e02a7dd136f142720b796febeb31bc45447
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/468420
Reviewed-by: Liam Appelbe <liama@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>

DEPS

@@ -97,7 +97,7 @@ vars = {
 
   # Prefer to use hashes of binaryen that have been reviewed & rolled into g3.
   "binaryen_rev" : "6ec7b5f9c615d3b224c67ae221d6812c8f8e1a96",
-  "boringssl_rev": "53844eb8bb2a6935a77746772657fea96fa1fc9f",
+  "boringssl_rev": "875810f3c416541ac8154680fcf306150dc9d43d",
   "browser-compat-data_tag": "ac8cae697014da1ff7124fba33b0b4245cc6cd1b", # v1.0.22
   "cpu_features_rev": "936b9ab5515dead115606559502e3864958f7f6e",
   "devtools_rev": "bac6843cce3c98d8794a7cce796faaa8860cc00f",