esp32/mpconfigport: Disable I2CTarget on ESP32-C6 to reduce code size.

I2CTarget costs about 8k of flash size on ESP32-S2, and about 11k on
ESP32-C6.  The ESP32-C6 only has about 8k remaining, so disable I2CTarget
on that SoC until more flash can be made available.

Signed-off-by: Damien George <[email protected]>

Author: dpgeorge

ports/esp32/mpconfigport.h

@@ -140,7 +140,8 @@
 #define MICROPY_PY_MACHINE_I2C              (1)
 #define MICROPY_PY_MACHINE_I2C_TRANSFER_WRITE1 (1)
 // I2C target hardware is limited on ESP32 (eg read event comes after the read) so we only support newer SoCs.
-#define MICROPY_PY_MACHINE_I2C_TARGET       (SOC_I2C_SUPPORT_SLAVE && !CONFIG_IDF_TARGET_ESP32)
+// ESP32C6 does not have enough flash space so also disable it on that SoC.
+#define MICROPY_PY_MACHINE_I2C_TARGET       (SOC_I2C_SUPPORT_SLAVE && !CONFIG_IDF_TARGET_ESP32 && !CONFIG_IDF_TARGET_ESP32C6)
 #define MICROPY_PY_MACHINE_I2C_TARGET_INCLUDEFILE "ports/esp32/machine_i2c_target.c"
 #define MICROPY_PY_MACHINE_I2C_TARGET_MAX   (2)
 #define MICROPY_PY_MACHINE_SOFTI2C          (1)