Multi gpiochip support for native environment (#5743)

* For each GPIO PIN, allow to specify gpiochip and line

* Added support for LLCC68 in native env.

* Removed one if by employing &&

* Fix for log, as std::string and not const char*

* Remove CH341 flag, enabling it for all LoRa chips

* Provide a default example

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>

bin/config-dist.yaml

@@ -23,6 +23,47 @@ Lora:
 #  Busy: 20
 #  Reset: 18
 
+### The Radxa Zero 3E/W employs multiple gpio chips.
+### Each gpio pin must be unique, but can be assigned to a specific gpio chip and line.
+### In case solely a no. is given, the default gpio chip and pin == line will be employed.
+###
+#  Module: sx1262  # Radxa Zero 3E/W + Ebyte E22-900M30S
+#  DIO2_AS_RF_SWITCH: true
+#  DIO3_TCXO_VOLTAGE: 1.8
+#  CS:             # NSS     PIN_24 -> chip 4, line 22
+#    pin: 24
+#    gpiochip: 4
+#    line: 22
+#  SCK:            # SCK     PIN_23 -> chip 4, line 18
+#    pin: 23
+#    gpiochip: 4
+#    line: 18
+#  Busy:           # BUSY    PIN_29 -> chip 3!, line 11
+#    pin: 29
+#    gpiochip: 3
+#    line: 11
+#  MOSI:           # MOSI    PIN_19 -> chip 4, line 19
+#    pin: 19
+#    gpiochip: 4
+#    line: 19
+#  MISO:           # MISO    PIN_21 -> chip 4, line 21
+#    pin: 21
+#    gpiochip: 4
+#    line: 21
+#  Reset:          # NRST    PIN_27 -> chip 4, line 10
+#    pin: 27
+#    gpiochip: 4
+#    line: 10
+#  IRQ:            # DIO1    PIN_28 -> chip 4, line 11
+#    pin: 28
+#    gpiochip: 4
+#    line: 11
+#  RXen:           # RXEN    PIN_22 -> chip 3!, line 17
+#    pin: 22
+#    gpiochip: 3
+#    line: 17
+#  TXen: RADIOLIB_NC # TXEN   no PIN, no line, fallback to default gpio chip
+
 #  Module: sx1268  # SX1268-based modules, tested with Ebyte E22 400M33S
 #  CS: 21
 #  IRQ: 16
@@ -39,7 +80,7 @@ Lora:
 
 #  spiSpeed: 2000000
 
-### Set gpio chip to use in /dev/. Defaults to 0.
+### Set default/fallback gpio chip to use in /dev/. Defaults to 0.
 ### Notably the Raspberry Pi 5 puts the GPIO header on gpiochip4
 #  gpiochip: 4
 
@@ -147,4 +188,4 @@ General:
   MaxMessageQueue: 100
   ConfigDirectory: /etc/meshtasticd/config.d/
 #  MACAddress: AA:BB:CC:DD:EE:FF
-#  MACAddressSource: eth0
+#  MACAddressSource: eth0