MIPS fixes for 4.17-rc7

Some MIPS fixes for 4.17:

 - Fix build with DEBUG_ZBOOT and MACH_JZ4770 (4.16)

 - Include xilfpga FDT in fitImage and stop generating dtb.o (4.15)

 - Fix software IO coherence on CM SMP systems (4.8)

 - ptrace: Fix PEEKUSR/POKEUSR to o32 FGRs (3.14)

 - ptrace: Expose FIR register through FP regset (3.13)

 - Fix typo in KVM debugfs file name (3.10)
-----BEGIN PGP SIGNATURE-----

iHUEABYIAB0WIQS7lRNBWUYtqfDOVL41zuSGKxAj8gUCWwK2jAAKCRA1zuSGKxAj
8kXbAQD/Poo0YeGR+yWZKrJauEAkvW1Z2YwM7sb0xEQJiOLr+QEAo4nAl0HCIZoB
Xzk0sWgRvr1aBAILjJkbZyGUFHHbHwc=
=h7B4
-----END PGP SIGNATURE-----