arm: mach-k3: j721e: Enable OSPI boot

Add boot ROM XSPI bootmode, and set to BOOT_DEVICE_SPI if detected.

Signed-off-by: Jonathan Humphreys <j-humphreys@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
diff --git a/arch/arm/mach-k3/j721e_init.c b/arch/arm/mach-k3/j721e_init.c
index c2976c4..7ee9b75 100644
--- a/arch/arm/mach-k3/j721e_init.c
+++ b/arch/arm/mach-k3/j721e_init.c
@@ -346,7 +346,8 @@
 	bootmode |= (main_devstat & MAIN_DEVSTAT_BOOT_MODE_B_MASK) <<
 			BOOT_MODE_B_SHIFT;
 
-	if (bootmode == BOOT_DEVICE_OSPI || bootmode ==	BOOT_DEVICE_QSPI)
+	if (bootmode == BOOT_DEVICE_OSPI || bootmode == BOOT_DEVICE_QSPI ||
+	    bootmode == BOOT_DEVICE_XSPI)
 		bootmode = BOOT_DEVICE_SPI;
 
 	if (bootmode == BOOT_DEVICE_MMC2) {