Fixup loader to boot mainline on Qualcomm platforms that needs adjustment of
ATAG MEM.

Found at [1], built by issuing:

  arm-eabi-as -o fixup.o fixup.S
  arm-eabi-objcopy -O binary fixup.o fixup.bin


Use by concatenating together with zImage:

  cat fixup.bin arch/arm/boot/zImage > zImage


[1] https://www.codeaurora.org/cgit/quic/kernel/skales/tree/atag-fix/fixup.S