amazon-kvs-producer-sdk-cpp missing from kirkstone branch

[rpcme]

Problem

The amazon-kvs-producer-sdk-cpp recipe is present on master, scarthgap, and whinlatter branches but is completely missing from the kirkstone branch.

Evidence

# Recipe exists on other branches
$ ls recipes-sdk/amazon-kvs-producer-sdk/amazon-kvs-producer-sdk-cpp_*.bb
master:       amazon-kvs-producer-sdk-cpp_3.6.0.bb ✅
scarthgap:    amazon-kvs-producer-sdk-cpp_3.6.0.bb ✅
whinlatter:   amazon-kvs-producer-sdk-cpp_3.6.0.bb ✅
kirkstone:    (missing) ❌

Impact

• Kirkstone users cannot use the Amazon Kinesis Video Streams C++ Producer SDK
• Inconsistency across supported Yocto releases
• May indicate a failed backport or accidental deletion

Expected Behavior

The recipe should exist on kirkstone (or kirkstone-next) with an appropriate version that's compatible with Yocto 4.0 LTS.

Investigation Needed

1. Was this recipe intentionally excluded from kirkstone?
2. If not, which version should be backported?
3. Are there any kirkstone-specific compatibility issues?

Note

Kirkstone EOL is April 2026 (1 month away), so this may be low priority if the recipe was added after kirkstone branched.