Qualcomm Technologies, Inc. Secure Proccessor Communication (spcom)

Required properties:
-compatible : should be "qcom,spcom"
-qcom,spcom-ch-names: predefined channels name string
-qcom,spcom-sp2soc-rmb-reg-addr: Secure Processor to SOC shared
                                 register physical address
-qcom,spcom-sp2soc-rmb-initdone-bit: bit indicating Secure
                                     Processor init-done
-qcom,spcom-sp2soc-rmb-pbldone-bit: bit indicating Secure
                                    Processor bootloader-done
-qcom,spcom-soc2sp-rmb-reg-addr: SOC to Secure Processor shared
                                 register physical address
-qcom,spcom-soc2sp-rmb-sp-ssr-bit: bit indicating Secure
                                   Processor subsystem reset

Example:
    qcom,spcom {
            compatible = "qcom,spcom";
            qcom,spcom-ch-names = "sp_kernel" , "sp_ssr";
            qcom,spcom-sp2soc-rmb-reg-addr = <0x01881020>;
            qcom,spcom-sp2soc-rmb-initdone-bit = <24>;
            qcom,spcom-sp2soc-rmb-pbldone-bit = <25>;
            qcom,spcom-soc2sp-rmb-reg-addr = <0x01881030>;
            qcom,spcom-soc2sp-rmb-sp-ssr-bit = <0>;
    };
