nxphlite-v3:Remove OTG config qualifier

   This board supports USB but not doen not support OTG.

platforms/nuttx/nuttx-configs/nxphlite-v3/nsh/defconfig

@@ -252,7 +252,7 @@ CONFIG_KINETIS_LPTIMER=y
 CONFIG_KINETIS_RTC=y
 # CONFIG_KINETIS_EWM is not set
 # CONFIG_KINETIS_CMT is not set
-CONFIG_KINETIS_USBOTG=y
+# CONFIG_KINETIS_USBOTG  is not set
 CONFIG_KINETIS_USBDCD=y
 # CONFIG_KINETIS_LLWU is not set
 # CONFIG_KINETIS_TSI is not set