meta-digi-dey: base-file: disable file system check on the root file system partition when encrypted

This commit disables file system check on the root file system when it is encrypted.
This prevents the service from failing on encrypted rootfs with the message:

[FAILED] Failed to mount /run/media/mmcblk0p3.
See 'systemctl status run-media-mmcblk0p3.mount' for details.

Signed-off-by: Mike Engel <Mike.Engel@digi.com>

https://jira.digi.com/browse/DEL-6655

meta-digi-dey/recipes-core/base-files/base-files_3.0.14.bbappend

@@ -1,4 +1,4 @@
-# Copyright (C) 2013-2018 Digi International.
+# Copyright (C) 2013-2019 Digi International.
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
 
@@ -34,6 +34,22 @@ pkg_postinst_ontarget_${PN}() {
 			fi
 		done
 	fi
+
+	# Disable file system check when rootfs is encrypted
+	if [ -n "${TRUSTFENCE_INITRAMFS_IMAGE}" ]; then
+		for arg in $(cat /proc/cmdline); do
+			case "${arg}" in
+				root=*) eval ${arg};;
+			esac
+		done
+		# Are we running from NAND
+		if echo "${root}" | grep -qs ubi; then
+			root="/dev/${root}"
+		else
+			root="$(findfs ${root})"
+		fi
+		echo "${root}       /                    auto       defaults              0  0" >> /etc/fstab
+	fi
 }
 
 CONFFILES_${PN} += "${sysconfdir}/sysctl.conf"