fmu-v5:hrt needs to be running for ADC time out

Fixes bug introduced in 320d2e adding platform layer.

boards/px4/fmu-v5/src/init.c

@@ -215,6 +215,10 @@ __EXPORT int board_app_initialize(uintptr_t arg)
 	VDD_5V_RC_EN(true);
 	VDD_5V_WIFI_EN(true);
 
+	/* Need hrt running before using the ADC */
+
+	px4_platform_init();
+
 
 	if (OK == board_determine_hw_info()) {
 		syslog(LOG_INFO, "[boot] Rev 0x%1x : Ver 0x%1x %s\n", board_get_hw_revision(), board_get_hw_version(),
@@ -224,8 +228,6 @@ __EXPORT int board_app_initialize(uintptr_t arg)
 		syslog(LOG_ERR, "[boot] Failed to read HW revision and version\n");
 	}
 
-	px4_platform_init();
-
 	/* configure the DMA allocator */
 
 	if (board_dma_alloc_init() < 0) {