h-bridge stepper idle driver is missing Control pin assignments

[ggurov]

Under Idle Hardware -> Stepper H-Bridge Configuration,, each bridge has "No1 Direction", twice, and Disable. but "control" is missing.

in the ini, the same h-bridges for ETB would have 3 parameters:

	dialog = etbHbridgeHardwareNo1, "H-Bridge Hardware No1"
		field = "No1 Direction #1",						etbIo1_directionPin1
		field = "No1 Direction #2",						etbIo1_directionPin2
		field = "No1 Control",							etbIo1_controlPin
		field = "No1 Disable",							etbIo1_disablePin

but for idle h-bridge, only 2 are in the .ini

	dialog = stepperHbridgeHardwareNo1, "H-Bridge Hardware No1"
		field = "No1 Direction #1",						stepperDcIo1_directionPin1
		field = "No1 Direction #2",						stepperDcIo1_directionPin2
		field = "No1 Disable",							stepperDcIo1_disablePin