DSM: Add extra XPlus channels to protocol #585

Job	Run time
[Test] STM32F103 (128KB)	3m 7s
[Test] OrangeRX	44s
[Test] STM32F103 (64KB)	3m 10s
[Test] ATmega328p (Optiboot)	3m 22s
[Test] STM32F103 (128KB, USB Debug)	3m 44s
[Test] STM32F103 (128KB, Serial Debug)	3m 43s
[Build] ATmega328p	32s
[Build] STM32F103 CC2500 (128KB)	30s
[Build] STM32F103 (128KB, USB Debug)	22s
[Build] STM32F103 (128KB, Serial Debug)	18s
[Build] STM32F103 5-in-1 (128KB)	1m 5s
[Build] ATmega328p (Optiboot)	27s
[Test] T18 5-in-1 (128KB)	2m 56s
[Test] ATmega328p	3m 14s
[Build] STM32F103 (128KB)	1m 24s
[Build] T-Lite 5-in-1 (128KB)	1m 4s
[Build] STM32F103 CC2500 (64KB)	33s
[Build] OrangeRX	27s
[Build] Scripts	7s
[Build] T18 5-in-1 (128KB)	1m 1s
[Deploy] Attach Build Artifacts	8s
[Release] Publish Files to Release	0s
	31m 58s

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