DTC patches

[Jon Loeliger]

    dtc: Simplify error handling for unparseable input [resend]
    dtc: Clean up included Makefile fragments [resend]
    dtc: Trivial formatting fixes [resend]
    dtc: Make dt_from_blob() open its own input file, like the other input formats [resend]
    dtc: Rework handling of boot_cpuid_phys [resend]

All applied and pushed out.

    dtc: Rework handling of boot_cpuid_phys [resend]
                                            ^
                                            |
Please don't do this -----------------------+

This forced an edit of each commit message by hand.
If you are going to do this, do this instead:

    Subject: [resend] dtc: Rework handling of boot_cpuid_phys

Thanks,
jdl