Amlogic Secmon

This driver can be used to configure secure monitor.

Required properties:
 - compatible: must be "amlogic,secmon"
 - memory-region: refer to node<secmon_reserved>
 - reserve_men_size: reserved memory size
 - in_base_func: sip function id
 - out_base_func: sip function id
 - clear_range: bl31 used region

Examples:

	secmom{
		compatible = "amlogic,secmon";
		memory-region = <&secmon_reserved>;
		reserve_mem_size = <0x00300000>;
                in_base_func = <0x82000020>;
                out_base_func = <0x82000021>;
                clear_range = <0x05100000 0x200000>;
	};
