crypto: testmgr - Wrap the LHS in expressions of the form !x == y

In the test manager, there are a number of if-statements with expressions of
the form !x == y that incur warnings with gcc-5 of the following form:

../crypto/testmgr.c: In function '__test_aead':
../crypto/testmgr.c:523:12: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses]
   if (!ret == template[i].fail) {
            ^

By converting the 'fail' member of struct aead_testvec and struct
cipher_testvec to a bool, we can get rid of the warnings.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/testmgr.h

@@ -54,7 +54,7 @@ struct cipher_testvec {
 	unsigned short tap[MAX_TAP];
 	int np;
 	unsigned char also_non_np;
-	unsigned char fail;
+	bool fail;
 	unsigned char wk; /* weak key flag */
 	unsigned char klen;
 	unsigned short ilen;
@@ -71,7 +71,7 @@ struct aead_testvec {
 	unsigned char atap[MAX_TAP];
 	int np;
 	int anp;
-	unsigned char fail;
+	bool fail;
 	unsigned char novrfy;	/* ccm dec verification failure expected */
 	unsigned char wk; /* weak key flag */
 	unsigned char klen;
@@ -3018,7 +3018,7 @@ static struct cipher_testvec des_enc_tv_template[] = {
 			  "\xb4\x99\x26\xf7\x1f\xe1\xd4\x90",
 		.rlen	= 24,
 	}, { /* Weak key */
-		.fail	= 1,
+		.fail	= true,
 		.wk	= 1,
 		.key	= "\x01\x01\x01\x01\x01\x01\x01\x01",
 		.klen	= 8,