I.MX6 CAAM

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 *                                I.MX6 CAAM

 * 说明：

 *     稍微看了一下CAAM是什么，给OpenSSL用的加密加速器。

 *

 *                                              2017-10-24 深圳 南山平山村 曾剑锋

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一、参考文档：

    . CAAM (Cryptographic Accelerator and Assurance Module)

        https://www.digi.com/resources/documentation/digidocs/90001546/reference/android/r_caam_android.htm

    . iMX6 (CAAM, TrustZone) Hardware Security Blocks Use.

        https://community.nxp.com/thread/343151

    . CAAM test application for iMX6

        https://community.nxp.com/thread/309499
    4. Android 6.0 变更
        https://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-camera