arm: K3: Increase default SYSFW image size allocation

The memory allocated to store the FIT image containing SYSFW and board
configuration data is statically defined to the largest size expected.
This was 269000 bytes but now needs to be grown to 276000 to make room
for the signatures attached to the board configuration data on High
Security devices.
Signed-off-by: NAndrew F. Davis <afd@ti.com>

arch/arm/mach-k3/Kconfig

@@ -98,7 +98,7 @@ config K3_SYSFW_IMAGE_MMCSD_RAW_MODE_PART
 config K3_SYSFW_IMAGE_SIZE_MAX
 	int "Amount of memory dynamically allocated for loading SYSFW blob"
 	depends on K3_LOAD_SYSFW
-	default	269000
+	default	276000
 	help
 	  Amount of memory (in bytes) reserved through dynamic allocation at
 	  runtime for loading the combined System Firmware and configuration image