hw/xtensa: implement ESP32-S3 machine

This also includes the ESP32-S3 BIOS (ROM bootloader)

Author: dmitry1945

configs/devices/xtensa-softmmu/default.mak

@@ -9,3 +9,4 @@
 # CONFIG_XTENSA_VIRT=n
 # CONFIG_XTENSA_XTFPGA=n
 # CONFIG_XTENSA_ESP32=n
+# CONFIG_XTENSA_ESP32S3=n

hw/xtensa/Kconfig

@@ -33,3 +33,16 @@ config XTENSA_ESP32
     select LED
     select ESP_RGB
 
+config XTENSA_ESP32S3
+    bool
+    default y
+    depends on XTENSA
+    select SSI
+    select SSI_M25P80
+    select UNIMP
+    select OPENCORES_ETH
+    select DWC_SDMMC
+    select TMP105
+    select ESP_RGB
+
+