feat(disasm): name the arm64 words arm64asm refuses

arm64asm rejects three exception-space words the toolchain's corpus
assembles: the hypervisor call HVC, the secure monitor call SMC and
the speculation barrier SB.  The supplementary naming table reads
the raw word in the error branch and renders the corpus spellings;
the corpus rows are pinned in the parity fixture and the boundary
test holds the unallocated neighbours on the placeholder.

Assisted-by: GLM 5.3

disasm/testdata/parity_arm64.txt

@@ -142,3 +142,6 @@ e15a8b4d	VST1.P V1.H[7], (R23)(R11)
 b786904d	VST1.P V23.D[1], (R21)(R16)
 4d03631e	UCVTFWD R26, F13
 2c3c0e0e	VMOV V1.H[3], R12
+82fe1dd4	HVC $61428
+238b12d4	SMC $37977
+ff3003d5	SB