Log Message:
Update afl to 2.10b:

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Version 2.10b:
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  - Fixed a minor core counting glitch, reported by Tyler Nighswander.

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Version 2.09b:
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  - Made several documentation updates.

  - Added some visual indicators to promote and simplify the use of -Z.

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Version 2.08b:
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  - Added explicit support for -m32 and -m64 for llvm_mode. Inspired by
    a request from Christian Holler.

  - Added a new benchmarking option, as requested by Kostya Serebryany.

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Version 2.07b:
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  - Added CPU affinity option (-Z) on Linux. With some caution, this can
    offer a significant (10%+) performance bump and reduce jitter.
    Proposed by Austin Seipp.

  - Updated afl-gotcpu to use CPU affinity where supported.

  - Fixed confusing CPU_TARGET error messages with QEMU build. Spotted by
    Daniel Komaromy and others.