board: emulation: New board qemu-xtensa

Introduce the new board, define every bits.

Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 4afd56b..70eebb4 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -15,6 +15,10 @@
 	bool "Support XTFPGA"
 	select BOARD_POSTCLK_INIT
 
+config TARGET_QEMU_XTENSA
+	bool "Support QEMU Xtensa Virt Board"
+	select BOARD_LATE_INIT
+
 endchoice
 
 config SYS_ICACHE_OFF
@@ -69,5 +73,6 @@
 endchoice
 
 source "board/cadence/xtfpga/Kconfig"
+source "board/emulation/qemu-xtensa/Kconfig"
 
 endmenu