Gladiator Hang Detection provides sysfs entries for configuring
thresholds and enable on ACE_port, IO_port, M1_port, M2_port,
and PCIO_port

If gladiator is hung for threshold time (value * 5ns) and no
heart beat event from gladiator port to gladiator hang monitor
detection, gladiator hang interrupt would be generated to reset
the SOC to collect all cores context.

Gladiator hang detection can be enabled on different ports.

Writing 1 into ace_enabled sysfs entry, enables gladiator hang
detection on ACE port
Writing 1 into io_enabled sysfs entry, enables gladiator hang
detection on IO port
Writing 1 into ace_enabled sysfs entry, enables gladiator hang
detection on M1 port
Writing 1 into ace_enabled sysfs entry, enables gladiator hang
detection on M2 port
Writing 1 into pcio_enabled sysfs entry, enables gladiator hang
detection on PCIO port

Required properties:
- compatible : "qcom,gladiator-hang-detect" or "qcom,gladiator-hang-detect-v2"
				or "qcom,gladiator-hang-detect-v3"
- qcom, threshold-arr:
		Array of APCS_COMMON_GLADIATOR_HANG_THRESHOLD_n register
		address
- qcom, config-reg:
		APCS_COMMON_GLADIATOR_HANG_CONFIG register address

Optional properties:

Example:
	For msmcobalt:
		qcom,ghd {
				compatible = "qcom,gladiator-hang-detect";
				qcom,threshold-arr = <0x179d141c 0x179d1420
					0x179d1424 0x179d1428 0x179d1420 0x179d1430>;
				qcom,config-reg = <0x179d1434>;
		};
