hal: renesas: rz: Improve CMakeLists for ADC driver

Improve CMakeLists for ADC driver

Signed-off-by: Phuc Pham <phuc.pham.xr@bp.renesas.com>
Signed-off-by: Nhut Nguyen <nhut.nguyen.kc@renesas.com>

Author: Phuc Pham

drivers/rz/CMakeLists.txt

@@ -39,13 +39,11 @@ zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_IOPORT
 zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_SCIF_UART
 	fsp/src/${SOC_SERIES_PREFIX}/r_scif_uart/r_scif_uart.c)
 
-if(CONFIG_DT_HAS_RENESAS_RZ_ADC_C_ENABLED)
-	zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_ADC
-		fsp/src/${SOC_SERIES_PREFIX}/r_adc_c/r_adc_c.c)
-else()
-	zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_ADC
-		fsp/src/${SOC_SERIES_PREFIX}/r_adc/r_adc.c)
-endif()
+zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_ADC
+	fsp/src/${SOC_SERIES_PREFIX}/r_adc/r_adc.c)
+
+zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_ADC_C
+	fsp/src/${SOC_SERIES_PREFIX}/r_adc_c/r_adc_c.c)
 
 zephyr_library_sources_ifdef(CONFIG_USE_RZ_FSP_MHU
 	fsp/src/${SOC_SERIES_PREFIX}/r_mhu_ns/r_mhu_ns.c)