Fix copyright disclaimer.

The mention of the GPL shouldn't have been there.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from #20517)

(cherry picked from commit c879f8a)

crypto/aes/asm/bsaes-armv7.pl

@@ -14,7 +14,7 @@
 # details see http://www.openssl.org/~appro/cryptogams/.
 #
 # Specific modes and adaptation for Linux kernel by Ard Biesheuvel
-# of Linaro. Permission to use under GPL terms is granted.
+# of Linaro.
 # ====================================================================
 
 # Bit-sliced AES for ARM NEON