arm64/crc-t10dif: fix use of out-of-scope array in crc_t10dif_arch()

Fix a silly bug where an array was used outside of its scope.

Fixes: 2051da8 ("arm64/crc-t10dif: expose CRC-T10DIF function through lib")
Cc: stable@vger.kernel.org
Reported-by: David Binderman <dcb314@hotmail.com>
Closes: https://lore.kernel.org/r/AS8PR02MB102170568EAE7FFDF93C8D1ED9CA62@AS8PR02MB10217.eurprd02.prod.outlook.com
Link: https://lore.kernel.org/r/20250326200918.125743-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>

arch/arm64/lib/crc-t10dif-glue.c

@@ -45,9 +45,7 @@ u16 crc_t10dif_arch(u16 crc, const u8 *data, size_t length)
 			crc_t10dif_pmull_p8(crc, data, length, buf);
 			kernel_neon_end();
 
-			crc = 0;
-			data = buf;
-			length = sizeof(buf);
+			return crc_t10dif_generic(0, buf, sizeof(buf));
 		}
 	}
 	return crc_t10dif_generic(crc, data, length);