Merge pull request #53284 from xxhdx1985126/wip-seastore-remap-intermediate_key

crimson/os/seastore/transaction_manager: move intermediate_key by "remap_offset" when remapping the "back" half of the original pin

Reviewed-by: Yingxin Cheng <yingxin.cheng@intel.com>
Reviewed-by: Chunmei Liu <chunmei.liu@intel.com>

diff --cc src/crimson/os/seastore/cached_extent.h
Simple merge