@AuraEnabled
 public static List<AggregateResult> getProfileInfo() {
   List<AggregateResult> plist = new List<AggregateResult>();
   plist = [SELECT Parent.Profile.Name, COUNT(SObjectType) FROM ObjectPermissions
            WHERE (ParentId IN (SELECT PermissionSetId FROM PermissionSetAssignment))
            AND Parent.IsOwnedByProfile = true
            AND (SObjectType IN :sobjectNames)
            GROUP BY Parent.Profile.Name];

   return plist;
 }

doInit: function(component, event, helper) {
    var cols1 = [
        {label: 'Profile Names', fieldName: 'Name', type: 'text'},
        {label: 'Object Counts', fieldName: 'ObjectName__c', type: 'Integer'}
        ];

    component.set("v.tableCols1", cols1);
},


fetchProfileOnly : function(component, event, helper){
    alert('fetchProfileOnly called');
    var action = component.get("c.getProfileInfo");
    alert('*******'+action);
    action.setCallback(this, function(response) {
        var state = response.getState();
        alert('*******'+state);
        if (state === "SUCCESS") {
            alert('inside success');
            var profileWithObjCounts = response.getReturnValue();
            alert('****All Profile*****'+profileWithObjCounts);
            component.find(profileId).set("v.profileList", profileWithObjCounts);
           }
       });
},

<aura:component controller="ConfigMonitoring" >
<aura:handler name="init" value="{!this}" action="{!c.fetchProfileOnly}"/>
<aura:attribute name="tableCols1" type="List" />
<aura:attribute name="profileList" type="List"/>
<div class="slds-card__body slds-card__body_inner" style="margin-top:10px;">
      <lightning:datatable data="{!v.profileList}"
                           columns="{!v.tableCols1 }"
                           keyField="Id"
                           hideCheckboxColumn="true"
                           />
</div>
</aura:component>

SELECT Parent.Profile.Name pn, COUNT(SObjectType) oc

var cols1 = [
    {label: 'Profile Names', fieldName: 'pn', type: 'String'},
    {label: 'Object Counts', fieldName: 'oc', type: 'Integer'}
    ];