msi-ec: add firmware 15H4IMS1.107/.108/.117 for Modern 15 H B13M

[AdelSrour]

Summary

Add support for Modern 15 H B13M by registering EC firmware versions 15H4IMS1.107, 15H4IMS1.108, and 15H4IMS1.117 in ALLOWED_FW_G2_0.

This model uses the same EC layout as the Modern 15 B13M (15H1IMS1) / Modern 15 H AI C1MG (15H5EMS1) config (CONF_G2_0), as noted in discussion #277 for issue #488.

Testing

• Device: MSI Modern 15 H B13M (MS-15H4)
• EC firmware: 15H4IMS1.107 (also verified against dumps for .108 and .117 from [Support request] Modern 15 H B13M (15H4IMS1.108) #488)
• OS / kernel: Ubuntu 24.04, kernel 6.14.0-37-generic
• Verified working:
  • Module loads (msi_ec: module_init, ACPI: battery: new hook: msi-ec)
  • fw_version → 15H4IMS1.107
  • shift_mode → comfort
  • fan_mode → auto
  • cooler_boost → off
  • CPU temp / fan speed via sysfs
  • Charge control thresholds (start=70, end=80)
  • Keyboard backlight + mute/micmute LED class devices registered
  • WebCam toggle
  • Fn/Meta

Closes #488

[newparky]

Running well on my laptop, nice to see a decent build come up