CONF: enable kernel config file deploy

Change-Id: Ife1bc682b42d8669a8ce8f275a41a9c4a690de0b
Signed-off-by: Romuald JEANNE <romuald.jeanne@st.com>

conf/machine/include/st-machine-common-stm32mp.inc

@@ -400,6 +400,9 @@ KERNEL_ALT_IMAGETYPE =+ " ${@bb.utils.contains('MACHINE_FEATURES', 'fit', 'uImag
 # Define to null to skip kernel image size check
 KERNEL_IMAGE_MAXSIZE ?= ""
 
+# Enable kernel config file deploy
+KERNEL_CONFIG_DEPLOY ?= "1"
+
 # For fit usage
 UBOOT_ENTRYPOINT = "0xC0800000"