tests: drivers: dac: dac_api: src: update dac_api driver test

-add nucleo_u083rc and stm32u083c_dk  boards for testbench purpose.
- add min_ram property to skip test on boards with little ram size.

Signed-off-by: Fabrice DJIATSA <fabrice.djiatsa-ext@st.com>

Author: djiatsaf-st

tests/drivers/dac/dac_api/src/test_dac.c

@@ -26,7 +26,9 @@
 	defined(CONFIG_BOARD_NUCLEO_L552ZE_Q) || \
 	defined(CONFIG_BOARD_STM32L562E_DK) || \
 	defined(CONFIG_BOARD_STM32H573I_DK) || \
+	defined(CONFIG_BOARD_STM32U083C_DK) || \
 	defined(CONFIG_BOARD_B_U585I_IOT02A) || \
+	defined(CONFIG_BOARD_NUCLEO_U083RC) || \
 	defined(CONFIG_BOARD_NUCLEO_U575ZI_Q) || \
 	defined(CONFIG_BOARD_NUCLEO_U5A5ZJ_Q) || \
 	defined(CONFIG_BOARD_NUCLEO_WL55JC) || \

tests/drivers/dac/dac_api/testcase.yaml

@@ -6,3 +6,4 @@ common:
 tests:
   drivers.dac.api:
     depends_on: dac
+    min_ram: 16