Add a directory by kernel instead of a common root, add qnap-301w and rpi4 kernel 6.1 suppport

5.4/target/linux/ipq807x/base-files/etc/init.d/bootcount

@@ -0,0 +1,13 @@
+#!/bin/sh /etc/rc.common
+
+START=99
+
+boot() {
+	case $(board_name) in
+	edgecore,eap102)
+		fw_setenv upgrade_available 0
+		# Unset changed flag after sysupgrade complete
+		fw_setenv changed
+	;;
+	esac
+}