Add core vbat to board config file.
#define OMV_OSC_PLL1VCO (RCC_PLL1VCOWIDE)
#define OMV_OSC_PLL1FRAC (0)
+// Core VBAT for selftests
+#define OMV_CORE_VBAT "3.3"
+
// PLL2 180MHz for FMC and QSPI.
#define OMV_OSC_PLL2M (3)
#define OMV_OSC_PLL2N (40)
