oc_obt_otm_*: fix syntax

Change-Id: Ic6c40d83e15e146247461034e44816de2e94b8c0
Signed-off-by: Kishen Maloor <kishen.maloor@intel.com>

security/oc_obt_otm_cert.c

@@ -468,7 +468,7 @@ obt_cert_5(oc_client_response_t *data)
 
   /** 5) generate random deviceuuid; <store new peer uuid>; post doxm deviceuuid
    */
-  oc_uuid_t dev_uuid = { 0 };
+  oc_uuid_t dev_uuid = { { 0 } };
   oc_gen_uuid(&dev_uuid);
   char uuid[OC_UUID_LEN];
   oc_uuid_to_str(&dev_uuid, uuid, OC_UUID_LEN);

security/oc_obt_otm_justworks.c

@@ -467,7 +467,7 @@ obt_jw_5(oc_client_response_t *data)
 
   /** 5) generate random deviceuuid; <store new peer uuid>; post doxm deviceuuid
    */
-  oc_uuid_t dev_uuid = { 0 };
+  oc_uuid_t dev_uuid = { { 0 } };
   oc_gen_uuid(&dev_uuid);
   char uuid[OC_UUID_LEN];
   oc_uuid_to_str(&dev_uuid, uuid, OC_UUID_LEN);

security/oc_obt_otm_randompin.c

@@ -468,7 +468,7 @@ obt_rdp_3(oc_client_response_t *data)
 
   /** 3) generate random deviceuuid; <store new peer uuid>; post doxm deviceuuid
    */
-  oc_uuid_t dev_uuid = { 0 };
+  oc_uuid_t dev_uuid = { { 0 } };
   oc_gen_uuid(&dev_uuid);
   char uuid[OC_UUID_LEN];
   oc_uuid_to_str(&dev_uuid, uuid, OC_UUID_LEN);