CryptoPkg: Need to enable crypto functions
    
    REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3992
    
    V2: Update Readme and CryptoPkg.dsc to reflect changes and be in sync.
    
    V1: Enable CryptAes for PEI phase. Enable CryptHkdf for SMM phase.
        Update Readme.md
    
    Cc: Jiewen Yao <jiewen.yao@intel.com>
    Cc: Jian J Wang <jian.j.wang@intel.com>
    Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
    Cc: Guomin Jiang <guomin.jiang@intel.com>
    Cc: Nishant C Mistry <nishant.c.mistry@intel.com>
    Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
    Signed-off-by: Nishant C Mistry <nishant.c.mistry@intel.com>
    Signed-off-by: Judah Vang <judah.vang@intel.com>
    Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
    Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>