Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index 2bc3321..ffa0245 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -83,7 +83,7 @@
 }
 /*
  * Returns DEFAULT_BLK_SZ bytes of random data per call
- * returns 0 if generation succeded, <0 if something went wrong
+ * returns 0 if generation succeeded, <0 if something went wrong
  */
 static int _get_more_prng_bytes(struct prng_context *ctx, int cont_test)
 {