sb1: fix buggy comparison

cppcheck reported:
[rockbox/utils/imxtools/sbtools/sb1.c:440]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.

Thanks to Thomas Jarosch

Change-Id: I0078232706d4014a1f2acea310a7a0d0edf7788b

1 files changed, 1 insertions, 1 deletions

diff --git a/utils/imxtools/sbtools/sb1.c b/utils/imxtools/sbtools/sb1.c
index 6bc4dd8cfa..f252ded2b8 100644
--- a/utils/imxtools/sbtools/sb1.c
+++ b/utils/imxtools/sbtools/sb1.c
@@ -437,7 +437,7 @@ struct sb1_file_t *sb1_read_memory(void *_buf, size_t filesize, void *u,
 
     for(int i = 0; i < g_nr_keys; i++)
     {
-        if(!g_key_array[i].method == CRYPTO_XOR_KEY)
+        if(g_key_array[i].method != CRYPTO_XOR_KEY)
             continue;
         /* copy key and data because it's modified by the crypto code */
         memcpy(key, g_key_array[i].u.xor_key, sizeof(key));