Add new build for esp32s3dev_8MB_qspi

It seems that several S3 with 8MB flash have slower qspi PSRAM, and they won't boot with the 8MB_opi firmware.

platformio.ini

@@ -29,6 +29,7 @@ default_envs = nodemcuv2
                esp32S3_wroom2
                esp32s3dev_16MB_opi
                esp32s3dev_8MB_opi
+               esp32s3dev_8MB_qspi
                esp32s3_4M_qspi
                usermods
 
@@ -597,6 +598,19 @@ board_build.f_flash = 80000000L
 board_build.flash_mode = qio
 monitor_filters = esp32_exception_decoder
 
+[env:esp32s3dev_8MB_qspi]
+;; generic ESP32-S3 board with 8MB FLASH and PSRAM (memory_type: qio_qspi). Try this one if esp32s3dev_8MB_opi does not work on your board
+extends = env:esp32s3dev_8MB_opi
+board_build.arduino.memory_type = qio_qspi
+board_build.flash_mode = qio
+build_flags = ${common.build_flags} ${esp32s3.build_flags} -D WLED_RELEASE_NAME=\"ESP32-S3_8MB_qspi\"
+  -D WLED_WATCHDOG_TIMEOUT=0
+  ;-D ARDUINO_USB_CDC_ON_BOOT=0  ;; -D ARDUINO_USB_MODE=1 ;; for boards with serial-to-USB chip
+  -D ARDUINO_USB_CDC_ON_BOOT=1 ;; -D ARDUINO_USB_MODE=1      ;; for boards with USB-OTG connector only (USBCDC or "TinyUSB")
+  -DBOARD_HAS_PSRAM
+  ;; -DLOLIN_WIFI_FIX ;; uncomment if you have WiFi connectivity problems
+monitor_filters = esp32_exception_decoder
+
 [env:esp32S3_wroom2]
 ;; For ESP32-S3 WROOM-2, a.k.a. ESP32-S3 DevKitC-1 v1.1
 ;; with >= 16MB FLASH and >= 8MB PSRAM (memory_type: opi_opi)