swupdate: use dynamic mtd-blacklist for configuration file

The 'mtd-blacklist' parameter prevents swupdate from acting upon those
partitions that we consider sensitive.
Make such list platform-dependent.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>

meta-digi-arm/conf/machine/include/ccimx6ul.inc

@@ -69,3 +69,7 @@ UBOOT_ENV_SIZE ?= "0x20000"
 # the U-Boot environment can take up (if undefined, it will take up all the
 # available space in the environment partition)
 UBOOT_ENV_RANGE ?= ""
+
+# Partitions to blacklist for swupdate:
+# bootloader, environment, safe
+SWUPDATE_MTD_BLACKLIST = "0 1 2"

meta-digi-arm/conf/machine/include/ccmp1.inc

@@ -76,3 +76,7 @@ do_create_flashlayout_config[noexec] = "1"
 
 # Include boot script into the FIT image
 UBOOT_ENV = "${@bb.utils.contains('TRUSTFENCE_FIT_IMG', '1', 'boot', '', d)}"
+
+# Partitions to blacklist for swupdate:
+# fsbl1, fsbl2, metadata1, metadata2, fip-a, fip-b
+SWUPDATE_MTD_BLACKLIST = "0 1 2 3 4 5"

meta-digi-dey/recipes-support/swupdate/swupdate/swupdate.cfg

@@ -12,7 +12,7 @@ globals : {
 	verbose = true;
 	loglevel = 5;
 	syslog = true;
-	mtd-blacklist = "0 1 2";
+	#mtd-blacklist
 	#public-key-file
 };
 

meta-digi-dey/recipes-support/swupdate/swupdate_%.bbappend

@@ -24,6 +24,11 @@ do_install:append() {
 	install -d ${D}${sysconfdir}/
 	install -m 0755 ${WORKDIR}/swupdate.cfg ${D}${sysconfdir}
 
+	# Add MTD blacklist
+	if ${@oe.utils.conditional('STORAGE_MEDIA', 'mtd', 'true', 'false', d)}; then
+		sed -i "s,\(^\s*\)#mtd-blacklist,\1mtd-blacklist = \"${SWUPDATE_MTD_BLACKLIST}\",g" ${D}${sysconfdir}/swupdate.cfg
+	fi
+
 	# Add public-key-file setting to config file if TrustFence is enabled
 	if ${@oe.utils.conditional('TRUSTFENCE_ENABLED', '1', 'true', 'false', d)}; then
 		sed -i "s,\(^\s*\)#public-key-file,\1public-key-file = \"${sysconfdir}/ssl/certs/key.pub\",g" ${D}${sysconfdir}/swupdate.cfg