Clean up udeb configuration

• Delete some obsolete configuration:
  • Delete configuration for armel/marvell
  • Delete configuration for ide{-core,}-modules, ipv6-modules
  • Delete rtc-modules from kernel-image Provides
• Fold some small packages into other packages where there's no obvious reason for them to still be separate:
  • Fold i2c-modules into kernel-image (fixes FTBFS on alpha, sparc64)
  • Fold event-modules and mouse-modules into input-modules
  • Fold efi-modules into kernel-image
  • [arm64,armhf] Fold leds-modules into kernel-image
  • [amd64] Fold acpi-modules into kernel-image
  • [powerpc*] Fold fancontrol-modules into kernel-image
  • [alpha] Fold srm-modules into kernel-image
  • Fold crc-modules into kernel-image

I have build-tested these changes for alpha, amd64, arm64, armhf, hppa, loong64, mips64el, ppc64el, riscv64, sh4, and sparc64.