This PR fixes the ADR configuration for the ADR band, which was wrongly copy-pasted from the US configuration. The AU915 band has extra data rates, so instead of only DR0-3 we can optimize between DR0-5 in US915. This also means the 500kHz channel for the first req in the block should use DR6 instead of DR4.
Coverage decreased (-0.002%) to 73.294% when pulling f23102ca3bdcb7159b5657d0358d8ea992a52a92 on fix/au-adr into 208d4487ccd4bf2935a526f993cc890c6ff8bf7e on develop.
This PR fixes the ADR configuration for the ADR band, which was wrongly copy-pasted from the US configuration. The AU915 band has extra data rates, so instead of only DR0-3 we can optimize between DR0-5 in US915. This also means the 500kHz channel for the first req in the block should use DR6 instead of DR4.