HAL ticker tests : add optional CHECK_TICKER_OPTIM define

This will make build failure if ticker optim defines are not present

Author: jeromecoutant

hal/tests/TESTS/mbed_hal/lp_ticker/main.cpp

@@ -111,7 +111,7 @@ void lp_ticker_info_test()
     TEST_ASSERT(p_ticker_info->frequency <= 64000);
     TEST_ASSERT(p_ticker_info->bits >= 12);
 
-#ifdef LP_TICKER_PERIOD_NUM
+#if defined(LP_TICKER_PERIOD_NUM) || defined(CHECK_TICKER_OPTIM)
     TEST_ASSERT_UINT32_WITHIN(1, (uint64_t)1000000 * LP_TICKER_PERIOD_DEN / LP_TICKER_PERIOD_NUM, p_ticker_info->frequency);
     TEST_ASSERT_EQUAL_UINT32(LP_TICKER_MASK, ((uint64_t)1 << p_ticker_info->bits) - 1);
 #endif

hal/tests/TESTS/mbed_hal/us_ticker/main.cpp

@@ -46,7 +46,7 @@ void us_ticker_info_test()
 
     TEST_ASSERT(p_ticker_info->bits >= 16);
 
-#ifdef US_TICKER_PERIOD_NUM
+#if defined(US_TICKER_PERIOD_NUM) || defined(CHECK_TICKER_OPTIM)
     TEST_ASSERT_UINT32_WITHIN(1, (uint64_t)1000000 * US_TICKER_PERIOD_DEN / US_TICKER_PERIOD_NUM, p_ticker_info->frequency);
     TEST_ASSERT_EQUAL_UINT32(US_TICKER_MASK, ((uint64_t)1 << p_ticker_info->bits) - 1);
 #endif