all mmi power supply defined in mmi_discrete_power_supply.h to remove discrete defined in many files. Change-Id: I41c978961072f7aedf398df0984467d3d7d089b1 Signed-off-by: mahj8 <mahj8@motorola.com> Reviewed-on: https://gerrit.mot.com/2261274 SME-Granted: SME Approvals Granted SLTApproved: Slta Waiver Tested-by: Jira Key Reviewed-by: Wei Wei <weiweij@motorola.com> Reviewed-by: Lu Chai <chailu1@motorola.com> Reviewed-by: Huosheng Liao <liaohs@motorola.com> Submit-Approved: Jira Key