Dynamic binary EC parsing and flashing for both MEC and NPCX

[JohnAZoidberg]

Framework 13 Intel Gen 11-13 use MEC EC. Everything else uses NPCX.
After we introduced NPCX, I hardcoded some things for that. Should support both:

See:

• framework-system/framework_lib/src/ec_binary.rs

  Lines 148 to 157 in 96a7608

  	let offset = if ro {
  	EC_RO_VER_OFFSET
  	} else {
  	EC_RW_VER_OFFSET
  	};
  	let offset_zephyr = if ro {
  	EC_RO_VER_OFFSET_ZEPHYR
  	} else {
  	EC_RW_VER_OFFSET_ZEPHYR
  	};

• framework-system/framework_lib/src/chromium_ec/mod.rs

  Lines 393 to 406 in 96a7608

  	/// MEC/Legacy EC
  	/// | Start | End | Size | Region |
  	/// | 00000 | 3BFFF | 3C000 | RO Region |
  	/// | 3C000 | 3FFFF | 04000 | Preserved |
  	/// | 40000 | 3C000 | 39000 | RO Region |
  	/// | 79000 | 79FFF | 01000 | Preserved |
  	/// | 80000 | 80FFF | 01000 | Flash Flags |
  	///
  	/// NPC/Zephyr
  	/// | Start | End | Size | Region |
  	/// | 00000 | 3BFFF | 3C000 | RO Region |
  	/// | 3C000 | 3FFFF | 04000 | Preserved |
  	/// | 40000 | 3C000 | 39000 | RO Region |
  	/// | 79000 | 79FFF | 01000 | Flash Flags |