aarch64: fix BTI in bsaes assembly code

Change-Id: I63f0fb2af5eb9cea515dec96485325f8efd50511

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/23982)

(cherry picked from commit 88c74fe05bb4ea21aaba648a5cabd6665e40e3a5)

crypto/aes/asm/bsaes-armv8.pl

@@ -1018,6 +1018,7 @@ _bsaes_key_convert:
 //   Initialisation vector overwritten with last quadword of ciphertext
 //   No output registers, usual AAPCS64 register preservation
 ossl_bsaes_cbc_encrypt:
+        AARCH64_VALID_CALL_TARGET
         cmp     x2, #128
         bhs     .Lcbc_do_bsaes
         b       AES_cbc_encrypt
@@ -1270,7 +1271,7 @@ ossl_bsaes_cbc_encrypt:
 //   Output text filled in
 //   No output registers, usual AAPCS64 register preservation
 ossl_bsaes_ctr32_encrypt_blocks:
-
+        AARCH64_VALID_CALL_TARGET
         cmp     x2, #8                      // use plain AES for
         blo     .Lctr_enc_short             // small sizes
 
@@ -1476,6 +1477,7 @@ ossl_bsaes_ctr32_encrypt_blocks:
 //   Output ciphertext filled in
 //   No output registers, usual AAPCS64 register preservation
 ossl_bsaes_xts_encrypt:
+        AARCH64_VALID_CALL_TARGET
         // Stack layout:
         // sp ->
         //        nrounds*128-96 bytes: key schedule
@@ -1921,6 +1923,7 @@ ossl_bsaes_xts_encrypt:
 //   Output plaintext filled in
 //   No output registers, usual AAPCS64 register preservation
 ossl_bsaes_xts_decrypt:
+        AARCH64_VALID_CALL_TARGET
         // Stack layout:
         // sp ->
         //        nrounds*128-96 bytes: key schedule