[NFC] Fix typo

Author: SpencerAbson

llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td

@@ -3929,7 +3929,7 @@ let Predicates = [HasSVEAES2, HasSVE2p1orSSVE_AES] in {
   def AESEMC_4ZZI_B  : sve_crypto_binary_multi4<0b1000, "aesemc">;
   def AESDMIC_4ZZI_B : sve_crypto_binary_multi4<0b1100, "aesdimc">;
 
-  // SVE_AES2 mutlti-vector polynomial multitply
+  // SVE_AES2 multi-vector polynomial multiply
   def PMLAL_2ZZZ_Q : sve_crypto_pmlal_multi<"pmlal">;
   def PMULL_2ZZZ_Q : sve_crypto_pmull_multi<"pmull">;
 } // End HasSVEAES2, HasSVE2p1orSSVE_AES