bios: Replace model check with manufacturer check

[crawfxrd]

Instead of checking the model string against every system released with coreboot, just check that the manufacturer is System76.

Test: Flash a firmware-open board with this checked out.

[leviport]

Where does that manufacturer string come from? Because our desktops set multiple manufacturer strings in DMI to System76:

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: System76
	Product Name: Thelio
	Version: thelio-r3
	Serial Number: To be filled by O.E.M.
	UUID: d769ae41-c86a-9f1a-a153-047c164f85bd
	Wake-up Type: Power Switch
	SKU Number: To be filled by O.E.M.
	Family: To be filled by O.E.M.

Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
	Manufacturer: System76
	Product Name: Thelio
	Version: thelio-r3
	Serial Number: 07D7311_MA1E033952
	Asset Tag: To be filled by O.E.M.
	Features:
		Board is a hosting board
		Board is replaceable
	Location In Chassis: To be filled by O.E.M.
	Chassis Handle: 0x0003
	Type: Motherboard
	Contained Object Handles: 0

Handle 0x0003, DMI type 3, 22 bytes
Chassis Information
	Manufacturer: System76
	Type: Desktop
	Lock: Not Present
	Version: thelio-r3
	Serial Number: To be filled by O.E.M.
	Asset Tag: To be filled by O.E.M.
	Boot-up State: Safe
	Power Supply State: Safe
	Thermal State: Safe
	Security Status: None
	OEM Information: 0x00000000
	Height: Unspecified
	Number Of Power Cords: 1
	Contained Elements: 0
	SKU Number: To be filled by O.E.M.

[crawfxrd]

Type 1 SMBIOS data, as set by coreboot.

Handle 0x0001, DMI type 1, 27 bytes
System Information
	Manufacturer: System76
	Product Name: Darter Pro
	Version: darp8
	Serial Number: 123456789
	UUID: Not Settable
	Wake-up Type: Power Switch
	SKU Number: Not Specified
	Family: Not Specified

The BIOS vendor check is still there. This change only affects coreboot models.

[leviport]

So it'll probably match on all the Thelios then. I'll give it a test and see what happens.

[leviport]

Thelio-r3 seems ok. The MSI/AMI update thing started normally and the firmware installed without issue. I would like to test an Asus, ASRock, and Gigabyte board as well, since they all update slightly differently.

[leviport]

No issues on major-r4, mira-b4.1, spark-b1, or thelio-r2. If it does pick these systems up in the match, it doesn't look like there are any side effects.