uboot: ftd autodetection, simplify

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>

hwpack/am335x-bone-serial.conf

@@ -19,7 +19,7 @@ boot_script="uEnv.txt"
 boot_fstype="fat"
 uboot_SCRIPT_ENTRY="uenvcmd"
 uboot_CMD_LOAD="load"
-uboot_fdt_auto_detection="enabled"
+uboot_fdt_auto_detection=1
 
 #Kernel:
 #http://rcn-ee.net/deb/wheezy-armhf/LATEST-omap-psp

hwpack/am335x-bone-video.conf

@@ -19,7 +19,7 @@ boot_script="uEnv.txt"
 boot_fstype="fat"
 uboot_SCRIPT_ENTRY="uenvcmd"
 uboot_CMD_LOAD="load"
-uboot_fdt_auto_detection="enabled"
+uboot_fdt_auto_detection=1
 
 #Kernel:
 #http://rcn-ee.net/deb/wheezy-armhf/LATEST-omap-psp

hwpack/am335x-boneblack.conf

@@ -19,7 +19,7 @@ boot_script="uEnv.txt"
 boot_fstype="fat"
 uboot_SCRIPT_ENTRY="uenvcmd"
 uboot_CMD_LOAD="load"
-uboot_fdt_auto_detection="enabled"
+uboot_fdt_auto_detection=1
 
 #Kernel:
 #http://rcn-ee.net/deb/wheezy-armhf/LATEST-omap-psp

mk_mmc.sh

@@ -326,10 +326,10 @@ function dl_netinstall_image {
 
 function boot_uenv_txt_template {
 	#Start with a blank state:
-	echo "" > ${TEMPDIR}/bootscripts/normal.cmd
+	echo "#Normal Boot" > ${TEMPDIR}/bootscripts/normal.cmd
-	echo "" > ${TEMPDIR}/bootscripts/netinstall.cmd
+	echo "#Debian Installer only Boot" > ${TEMPDIR}/bootscripts/netinstall.cmd
 
-	if [ "${need_dtbs}" ] && [ "x${uboot_fdt_auto_detection}" != "xenabled" ]; then
+	if [ "${need_dtbs}" ] && [ ! "${uboot_fdt_auto_detection}" ] ; then
 		cat >> ${TEMPDIR}/bootscripts/normal.cmd <<-__EOF__
 			initrd_high=0xffffffff
 			fdt_high=0xffffffff