Update Ledger udev rules and model IDs

[bigspider]

Updated as per https://github.com/LedgerHQ/udev-rules/blob/f474382e370c9fa2a2207e6e675b9b364441aed7/20-hw1.rules, with more generic rules and including support for Ledger Stax and Flex.

Also added the corresponding device IDs for hwi enumerate.

[craigraw]

@bigspider It's probably a different PR, but would there need to be an additions to the map of LEDGER_MODEL_IDS

HWI/hwilib/devices/ledger.py

Lines 76 to 80 in 9fbe6be

	LEDGER_MODEL_IDS = {
	0x10: "ledger_nano_s",
	0x40: "ledger_nano_x",
	0x50: "ledger_nano_s_plus"
	}

for Stax (and now Flex) support?

[bigspider]

@bigspider It's probably a different PR, but would there need to be an additions to the map of LEDGER_MODEL_IDS

HWI/hwilib/devices/ledger.py

Lines 76 to 80 in 9fbe6be

	LEDGER_MODEL_IDS = {
	0x10: "ledger_nano_s",
	0x40: "ledger_nano_x",
	0x50: "ledger_nano_s_plus"
	}

for Stax (and now Flex) support?

Good catch, thank you! I think there's no reason to have two separate PRs: I added the IDs for Stax and Flex in b6e0d33. I tested locally that hwi enumerate correctly lists them.

[achow101]

ACK b6e0d33