fix emac test and add define for usb test

Author: JojoS62

targets/TARGET_NXP/USBHAL_LPC17.cpp

@@ -16,7 +16,7 @@
  */
 
 #if defined(DEVICE_USBDEVICE) && DEVICE_USBDEVICE && \
-    (defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC2460))
+    (defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC2460) || defined(TARGET_LPC17XX))
 
 #include "USBEndpoints_LPC17_LPC23.h"
 #include "USBPhyHw.h"

targets/targets.json5

@@ -509,7 +509,9 @@ mode is recommended for target MCUs with small amounts of flash and RAM.",
             "GCC_ARM"
         ],
         "macros": [
-            "MBED_SPLIT_HEAP"
+            "MBED_SPLIT_HEAP",
+            "TARGET_LPC17XX"  // for lpc-emac and lpc-usb
+
         ],
         "device_has": [
             "RTC",