Fix of by one error

[Rawa]

No description provided.

[Rawa]

Importing a json with a transmission count of 8 is broken and throws an error.

Android-nRF-Mesh-Library/mesh/src/main/java/no/nordicsemi/android/mesh/utils/NetworkTransmitSettings.java

Lines 14 to 15 in 9adcaeb

	public static final int MIN_TRANSMIT_COUNT = 0b000;
	public static final int MAX_TRANSMIT_COUNT = 0b111;

The values checked in the if statement was 0-7, and not 1-8 as by the text. This mean that the NodeDeserializer will fail if the value of the count is 8.

See deserializer:

https://github.com/NordicSemiconductor/Android-nRF-Mesh-Library/blob/main/mesh/src/main/java/no/nordicsemi/android/mesh/transport/NodeDeserializer.java#L111

[philips77]

Thank you for the PR!