- parser at 0xfffffff0270cbe18 sets the verify flag to 0 when
/arm-io/sgx lacks verify-gmmu-tlbis-at-sync
- BuildManifest maps iPhone19,7 -> v64sap; that DT lacks the key, as do
iBoot, AGX and the kernelcache; only SPTM contains the strings
- consequence: the GMMU TLBI completion window remains open on iPhone 27.2
(fix-gating gap, not a new memory-safety bug)