[RDKB][mt7986][app][Add fwupgrade tool]

[Description]
Add fwupgrade tool
1. fwupgrade tool refer to openwrt

[Release-log]

diff --git a/recipes-devtools/fw-upgrade/fw-upgrade_1.0.bb b/recipes-devtools/fw-upgrade/fw-upgrade_1.0.bb
new file mode 100644
index 0000000..7bed810
--- /dev/null
+++ b/recipes-devtools/fw-upgrade/fw-upgrade_1.0.bb
@@ -0,0 +1,30 @@
+SUMMARY = "firmware upgrade tool"
+SECTION = "applications"
+LICENSE = "GPLv2"
+LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe"
+
+S = "${WORKDIR}"
+
+
+SRC_URI = " \
+    file://COPYING \
+    file://platform.sh \
+    file://nand.sh \
+    file://sysupgrade \
+    file://do_stage2 \
+    "
+
+
+
+FILES_${PN} += " \
+            /lib/upgrade \
+            "
+
+do_install() {
+    install -d ${D}/lib/upgrade
+    install -m 0755 ${WORKDIR}/platform.sh ${D}/lib/upgrade
+    install -m 0755 ${WORKDIR}/nand.sh ${D}/lib/upgrade
+    install -m 0755 ${WORKDIR}/do_stage2 ${D}/lib/upgrade
+    install -d ${D}${sbindir}
+    install -m 0755 ${WORKDIR}/sysupgrade ${D}${sbindir}
+}