Change loop variable type to UBaseType_t

Author: peterus

cpputest-for-freertos-lib/src/cpputest_for_freertos_semaphore.cpp

@@ -59,10 +59,10 @@ extern "C" QueueHandle_t xQueueCreateCountingSemaphore(const UBaseType_t maxCoun
         return nullptr;
     }
 
-    for (int i = 0; i < initialCount; ++i)
+    for (UBaseType_t i = 0; i < initialCount; ++i)
     {
         xSemaphoreGive(sema);
     }
 
     return sema;
-}
+}