test: Add firmware and flash images for use with QEmu

- firmware-TK1-24.03.bin built from tillitis-key1 tag TK1-24.04 (commit
1c90b1aa3dbfb4e62039683ee6049ae8af608498) with:

  make -C contrib run
  cd hw/application_fpga
  make firmware.bin

- qemu_firmware-260225-main-2ffd46c.elf and
flash_image-260225-main-2ffd46c.bin built from tillitis-key1 commit
2ffd46cd31d2d27d69db938535ff970805ddbe5c with:

  make -C contrib run
  cd hw/application_fpga
  make qemu_firmware.elf flash_image.bin

Author: agren

REUSE.toml

@@ -37,6 +37,9 @@ path = [
      "test/Pipfile",
      "test/Pipfile.lock",
      "test/pyproject.toml",
+     "test/data/firmware/firmware-TK1-24.03.bin",
+     "test/data/firmware/qemu_firmware-260225-main-2ffd46c.elf",
+     "test/data/flash_images/flash_image-260225-main-2ffd46c.bin",
      ".editorconfig",
      ".gitignore",
      ".golangci.yml",