Remove error raised when LimitDevAccess cannot be found in Driver Con…

…fig File.

When this occurs it should just print a warning if warnings are enabled as it is
still valid to continue using a default value.

Change-Id: Iccdb0cc14ce3fcc9e059f04df8b875df3b03d9bc
Signed-off-by: Steve Linsell <stevenx.linsell@intel.com>

e_qat.c

@@ -977,7 +977,6 @@ static int qat_engine_init(ENGINE *e)
     if (!checkLimitDevAccessValue((int *)&limitDevAccess,
                                     ICPConfigSectionName_libcrypto)) {
         WARN("Could not load driver config file. Assuming LimitDevAccess = 0\n");
-        QATerr(QAT_F_QAT_ENGINE_INIT, QAT_R_LOAD_CONFIG_FILE_FAILURE);
     }
 #endif