Disallow the allocation of SPIs in the range reserved for future use by RFC 4303. Bug: 77205120 Test: runtest frameworks-net Merged-In: I05e26ed34b5871f1a07d5bd7b58b79a64cd74b67 Change-Id: I05e26ed34b5871f1a07d5bd7b58b79a64cd74b67 (cherry picked from commit 7f606ee8e57d9d8b7c5d0cb2a78421aa02efb385)