[bsp] update nuvoton board porting.

- Support M3331 series.
- Align nuvoton-series package only.

Author: ttnwosay

.github/ALL_BSP_COMPILE.json

@@ -291,7 +291,8 @@
         "nuvoton/ma35-rtp",
         "nuvoton/nk-980iot",
         "nuvoton/numaker-iot-ma35d1",
-        "nuvoton/numaker-m2354"
+        "nuvoton/numaker-m2354",
+        "nuvoton/numaker-m3334ki"
       ]
     },
     {

bsp/nuvoton/docs/LVGL_Notes.md

@@ -0,0 +1,36 @@
+# M3331 Series
+
+## Supported drivers
+
+| Peripheral | rt_device_class_type | Device name |
+| ------ | ----  | :------:  |
+| CANFD | RT_Device_Class_CAN | ***canfd[0-1]*** |
+| CRC | RT_Device_Class_Miscellaneous (HW Crypto) | ***hwcryto*** |
+| CRYPTO | RT_Device_Class_Miscellaneous (HW Crypto) | ***hwcryto*** |
+| DAC | RT_Device_Class_Miscellaneous (DAC) | ***dac[0-1]*** |
+| EADC | RT_Device_Class_Miscellaneous (ADC) | ***eadc0*** |
+| EBI | N/A | ***N/A*** |
+| ECAP | RT_Device_Class_Miscellaneous (Input capture) | ***ecap[0-1]i[0-2]*** |
+| EPWM | RT_Device_Class_Miscellaneous (PWM) | ***epwm[0-1]*** |
+| EPWM (Capture function) | RT_Device_Class_Miscellaneous (Input capture) | ***epwm[0-1]i[0-5]*** |
+| EQEI | RT_Device_Class_Miscellaneous (Pulse encoder) | ***eqei[0-3]*** |
+| RMC | FAL | ***N/A*** |
+| GPIO | RT_Device_Class_Miscellaneous (Pin) | ***gpio*** |
+| GPIO (Software I2C) | RT_Device_Class_I2CBUS | ***softi2c[0-1]*** |
+| I2C | RT_Device_Class_I2CBUS | ***i2c[0-3]*** |
+| PDMA | N/A | ***N/A*** |
+| PWM | RT_Device_Class_Miscellaneous (PWM) | ***pwm[0-1]*** |
+| QSPI | RT_Device_Class_SPIBUS | ***qspi0*** |
+| RTC | RT_Device_Class_RTC | ***rtc*** |
+| SPI | RT_Device_Class_SPIBUS | ***spi[0-3]*** |
+| SPI (I2S function) | RT_Device_Class_Sound/RT_Device_Class_Pipe | ***spii2s[0-3]*** |
+| TIMER | RT_Device_Class_Timer | ***timer[0-3]*** |
+| TIMER (PWM function) | RT_Device_Class_Miscellaneous (PWM) | ***tpwm[0-3]*** |
+| TRNG | RT_Device_Class_Miscellaneous (HW Crypto) | ***hwcryto*** |
+| UART | RT_Device_Class_Char | ***uart[0-7]*** |
+| USBD | RT_Device_Class_USBDevice | ***usbd*** |
+| USBH | RT_Device_Class_USBHost | ***usbh*** |
+| USCI (I2C function) | RT_Device_Class_I2CBUS | ***ui2c[0-1]*** |
+| USCI (SPI function) | RT_Device_Class_SPIBUS | ***uspi[0-1]*** |
+| USCI (UART function) | RT_Device_Class_Char | ***uuart[0-1]*** |
+| WDT | RT_Device_Class_Miscellaneous (Watchdog) | ***wdt*** |

bsp/nuvoton/libraries/m3331/README.md

@@ -0,0 +1,15 @@
+# RT-Thread building script for bridge
+
+import os
+from building import *
+
+cwd = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')