Bugfix for actual ESP32 core and usage of consequently #id defined (...)

[hasenradball]

Bug fixig for actual ESP32 core.

• fixing include issue (line 66...69)
• using consequently #if defined for controllers due to more accurate compiler settings on pioarduino.

Issue:

In file included from src/main.cpp:14:
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h: In member function 'void PxMATRIX::fm612xWriteRegister(uint16_t, uint8_t)':
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h:93:29: error: 'GPIO' was not declared in this scope
   93 |   #define GPIO_REG_SET(val) GPIO.out_w1ts = val
      |                             ^~~~
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h:407:5: note: in expansion of macro 'GPIO_REG_SET'
  407 |     GPIO_REG_SET(1 << _LATCH_PIN);
      |     ^~~~~~~~~~~~
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h: In member function 'void PxMATRIX::display(uint16_t)':
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h:94:31: error: 'GPIO' was not declared in this scope
   94 |   #define GPIO_REG_CLEAR(val) GPIO.out_w1tc = val
      |                               ^~~~
.pio/libdeps/esp32dev/PxMatrix LED MATRIX library/PxMatrix.h:1112:7: note: in expansion of macro 'GPIO_REG_CLEAR'
 1112 |       GPIO_REG_CLEAR( 1 << _OE_PIN);

Core:

Processing esp32dev (board: esp32dev; platform: https://github.com/pioarduino/platform-espressif32/releases/download/stable/platform-espressif32.zip; framework: arduino)
-------------------------------------------------------------------------------------------------------------------------------------------------
Library Manager: Installing 2dom/PxMatrix LED MATRIX library @ ^1.8.2
Unpacking  [####################################]  100%
Library Manager: PxMatrix LED MATRIX library@1.8.2 has been installed!
Library Manager: Installing adafruit/Adafruit GFX Library @ ^1.11.5
Unpacking  [####################################]  100%
Library Manager: Adafruit GFX Library@1.12.4 has been installed!
Library Manager: Resolving dependencies...
Library Manager: Installing Adafruit BusIO
Unpacking  [####################################]  100%
Library Manager: Adafruit BusIO@1.17.4 has been installed!
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32dev.html
PLATFORM: Espressif 32 (55.3.34) > Espressif ESP32 Dev Module
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES: 
 - contrib-piohome @ 3.4.4 
 - framework-arduinoespressif32 @ 3.3.4 
 - framework-arduinoespressif32-libs @ 5.5.0+sha.8410210c9a 
 - tool-esptoolpy @ 5.1.0 
 - tool-mklittlefs @ 3.2.0 
 - toolchain-xtensa-esp-elf @ 14.2.0+20250730
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 49 compatible libraries
Scanning dependencies...
Dependency Graph
|-- PxMatrix LED MATRIX library @ 1.8.2
|-- Adafruit GFX Library @ 1.12.4
|-- DBG_Print @ 2.0.9
|-- cWIFI @ 2.4.0
|-- server_functions
|-- WebServer @ 3.3.4