kernel: add a config option for /proc page monitoring (useful for detailed memory usage info)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40855 3c298f89-4303-0410-b956-a3cf2f4a3e73

config/Config-kernel.in

@@ -134,6 +134,9 @@ config KERNEL_PRINTK_TIME
 	bool "Enable printk timestamps"
 	default y
 
+config KERNEL_PROC_PAGE_MONITOR
+	bool "Enable /proc page monitoring"
+
 config KERNEL_RELAY
 	bool