Update platform_database.py

Author: guialonsoalb

src/mbed_os_tools/detect/platform_database.py

@@ -220,6 +220,7 @@
         u"1306": u"NUMAKER_PFM_NANO130",
         u"1307": u"NUMAKER_PFM_NUC240",
         u"1308": u"NUMAKER_IOT_M487",
+		u"1500": u"RHOMBIO_L476VG",
         u"1549": u"LPC1549",
         u"1600": u"LPC4330_M4",
         u"1605": u"LPC4330_M4",