Add esp32c6-no-ble variant.

Author: floitsch

variants/esp32c6-no-ble/README.md

@@ -0,0 +1,7 @@
+# ESP32C6-NO-BLE
+
+A variant of the ESP32C6 envelope that disables Bluetooth support to
+save RAM and flash space.
+
+Bluetooth reserves memory even when not used. Use this variant if you
+do not need Bluetooth support.

variants/esp32c6-no-ble/sdkconfig.defaults.patch

@@ -0,0 +1,20 @@
+--- toit/toolchains/esp32c6/sdkconfig.defaults
++++ synthesized/esp32c6-no-ble/sdkconfig.defaults
+@@ -11,17 +11,6 @@
+ CONFIG_PARTITION_TABLE_CUSTOM=y
+ CONFIG_COMPILER_OPTIMIZATION_SIZE=y
+ CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE=y
+-CONFIG_BT_ENABLED=y
+-CONFIG_BT_NIMBLE_ENABLED=y
+-CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_DEFAULT=y
+-CONFIG_BT_NIMBLE_LOG_LEVEL_NONE=y
+-CONFIG_BT_NIMBLE_MAX_CONNECTIONS=2
+-CONFIG_BT_NIMBLE_MAX_BONDS=4
+-CONFIG_BT_NIMBLE_MAX_CCCDS=3
+-CONFIG_BT_NIMBLE_NVS_PERSIST=y
+-CONFIG_BT_NIMBLE_SVC_GAP_DEVICE_NAME="toit"
+-CONFIG_BT_NIMBLE_SVC_GAP_APPEARANCE=0x0
+-CONFIG_BT_NIMBLE_TRANSPORT_ACL_FROM_LL_COUNT=10
+ CONFIG_I2S_ISR_IRAM_SAFE=y
+ CONFIG_SPI_SLAVE_ISR_IN_IRAM=n
+ CONFIG_UART_ISR_IN_IRAM=y