crypto: arm[64]/poly1305 - add artifact to .gitignore files

The .S_shipped yields a .S, and the pattern in these directories is to
add that to .gitignore so that git-status doesn't raise a fuss.

Fixes: a6b803b ("crypto: arm/poly1305 - incorporate OpenSSL/CRYPTOGAMS NEON implementation")
Fixes: f569ca1 ("crypto: arm64/poly1305 - incorporate OpenSSL/CRYPTOGAMS NEON implementation")
Reported-by: Emil Renner Berthing <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

Author: zx2c4

arch/arm/crypto/.gitignore

@@ -1,3 +1,4 @@
 aesbs-core.S
 sha256-core.S
 sha512-core.S
+poly1305-core.S