imx: imx93_qsb: switch to BOOTSTD

Switch to support BOOTSTD with a bsp bootcmd as fallback.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/imx9/Kconfig b/arch/arm/mach-imx/imx9/Kconfig
index c525460..d756f3d 100644
--- a/arch/arm/mach-imx/imx9/Kconfig
+++ b/arch/arm/mach-imx/imx9/Kconfig
@@ -41,6 +41,8 @@
 	select IMX93
 	select IMX9_LPDDR4X
 	imply OF_UPSTREAM
+	imply BOOTSTD_FULL
+	imply BOOTSTD_BOOTCOMMAND
 
 config TARGET_IMX93_11X11_EVK
 	bool "imx93_11x11_evk"