recovery: add recipe to generate the recovery ramdisk image

- This recipe generates the recovery ramdisk image with the contents of the
  recovery ramdisk tree (recovery-initramfs) and other packages.

Signed-off-by: David Escalona <david.escalona@digi.com>

meta-digi-dey/recipes-core/images/dey-image-recovery-initramfs.bb

@@ -0,0 +1,33 @@
+# Copyright (C) 2016 Digi International.
+
+DESCRIPTION = "Recovery initramfs image"
+LICENSE = "MIT"
+
+PACKAGE_INSTALL = " \
+    busybox \
+    recovery-initramfs \
+    swupdate \
+    trustfence-tool \
+    u-boot-fw-utils \
+    wipe \
+"
+
+PACKAGE_INSTALL_append_ccimx6 = " e2fsprogs-mke2fs parted"
+PACKAGE_INSTALL_append_ccimx6ul = " mtd-utils-ubifs"
+
+# Do not pollute the initrd image with rootfs features
+IMAGE_FEATURES = ""
+IMAGE_LINGUAS = ""
+
+IMAGE_FSTYPES = "cpio.gz.u-boot.tf"
+inherit core-image image_types_uboot
+
+IMAGE_ROOTFS_SIZE = "8192"
+
+# Remove some packages added via recommendations
+BAD_RECOMMENDATIONS += " \
+    busybox-syslog \
+    openssl-conf \
+"
+
+export IMAGE_BASENAME = "dey-image-recovery-initramfs"