VOL-1845 : Support for delete device in openolt adapter

           This commit is for the handling of delete device.

           The changes are done to handle the request for delete
           device. This includes the clearing of all data related
           to the device in KV store and reboot of device to reset
           the device.

           This commit has dependency in voltha-go so that needs to
           be merged first. Please refer this review link
           https://gerrit.opencord.org/#/c/15084/

           Updated to dep ensure above voltha-go patch set.  Also typo
           and make lint/sca fixes.

Change-Id: I53f16022c6902d498dad30e9b7d0ff50bf156347
diff --git a/vendor/github.com/hashicorp/consul/api/operator_license.go b/vendor/github.com/hashicorp/consul/api/operator_license.go
new file mode 100644
index 0000000..25aa702
--- /dev/null
+++ b/vendor/github.com/hashicorp/consul/api/operator_license.go
@@ -0,0 +1,111 @@
+package api
+
+import (
+	"io/ioutil"
+	"strings"
+	"time"
+)
+
+type License struct {
+	// The unique identifier of the license
+	LicenseID string `json:"license_id"`
+
+	// The customer ID associated with the license
+	CustomerID string `json:"customer_id"`
+
+	// If set, an identifier that should be used to lock the license to a
+	// particular site, cluster, etc.
+	InstallationID string `json:"installation_id"`
+
+	// The time at which the license was issued
+	IssueTime time.Time `json:"issue_time"`
+
+	// The time at which the license starts being valid
+	StartTime time.Time `json:"start_time"`
+
+	// The time after which the license expires
+	ExpirationTime time.Time `json:"expiration_time"`
+
+	// The time at which the license ceases to function and can
+	// no longer be used in any capacity
+	TerminationTime time.Time `json:"termination_time"`
+
+	// The product the license is valid for
+	Product string `json:"product"`
+
+	// License Specific Flags
+	Flags map[string]interface{} `json:"flags"`
+
+	// List of features enabled by the license
+	Features []string `json:"features"`
+}
+
+type LicenseReply struct {
+	Valid    bool
+	License  *License
+	Warnings []string
+}
+
+func (op *Operator) LicenseGet(q *QueryOptions) (*LicenseReply, error) {
+	var reply LicenseReply
+	if _, err := op.c.query("/v1/operator/license", &reply, q); err != nil {
+		return nil, err
+	} else {
+		return &reply, nil
+	}
+}
+
+func (op *Operator) LicenseGetSigned(q *QueryOptions) (string, error) {
+	r := op.c.newRequest("GET", "/v1/operator/license")
+	r.params.Set("signed", "1")
+	r.setQueryOptions(q)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	data, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	return string(data), nil
+}
+
+// LicenseReset will reset the license to the builtin one if it is still valid.
+// If the builtin license is invalid, the current license stays active.
+func (op *Operator) LicenseReset(opts *WriteOptions) (*LicenseReply, error) {
+	var reply LicenseReply
+	r := op.c.newRequest("DELETE", "/v1/operator/license")
+	r.setWriteOptions(opts)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if err := decodeBody(resp, &reply); err != nil {
+		return nil, err
+	}
+
+	return &reply, nil
+}
+
+func (op *Operator) LicensePut(license string, opts *WriteOptions) (*LicenseReply, error) {
+	var reply LicenseReply
+	r := op.c.newRequest("PUT", "/v1/operator/license")
+	r.setWriteOptions(opts)
+	r.body = strings.NewReader(license)
+	_, resp, err := requireOK(op.c.doRequest(r))
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if err := decodeBody(resp, &reply); err != nil {
+		return nil, err
+	}
+
+	return &reply, nil
+}