sdkconfig: allocate Wi-Fi and LWIP in IRAM

Basically everything Willow does uses both the Wi-Fi and IP stack, so it
makes sense to have this in IRAM. Since we freed up a bunch of IRAM in
commit 10accf8 ("lvgl: display buffer in SPIRAM"), we should have
enough memory available to do this.

Torture test results: 2000/2000.

Author: stintel

sdkconfig.defaults

@@ -123,7 +123,7 @@ CONFIG_SPIRAM_MALLOC_RESERVE_INTERNAL=32768
 CONFIG_SPIRAM_MODE_OCT=y
 CONFIG_SPIRAM_RODATA=y
 CONFIG_SPIRAM_SPEED_80M=y
-CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP=y
+# CONFIG_SPIRAM_TRY_ALLOCATE_WIFI_LWIP is not set
 CONFIG_SPI_MASTER_IN_IRAM=y
 CONFIG_SPI_SLAVE_IN_IRAM=y
 CONFIG_SR_MN_CN_NONE=y