Added missing brackets

Author: Bogdan Marinescu

source/sotp_rot.c

@@ -64,7 +64,9 @@ int8_t mbed_cloud_client_get_rot_128bit(uint8_t *key_buf, uint32_t length)
     {
 #if !defined(ARM_UC_SOTP_PROBE_ONLY) || ARM_UC_SOTP_PROBE_ONLY == 0 // sotp_probe doesn't need sotp_init()
         if (pal_internalFlashInit() != PAL_SUCCESS)
+        {
             return -1;
+        }
 #endif
         initialized = true;
     }