fix linters (#159)

Author: Bhagyashreek8

pkg/constants/constants.go

@@ -1,13 +1,13 @@
 package constants
 
 const (
-	DefaultIAMEndPoint    = "https://iam.cloud.ibm.com"
+	DefaultIAMEndPoint = "https://iam.cloud.ibm.com"
 
 	// Maximum number of volumes that controller can publish to the node.
 	// If value is not set or zero CO SHALL decide how many volumes of
 	// this type can be published by the controller to the node. The
 	// plugin MUST NOT set negative values here.
-	DefaultVolumesPerNode = 0 
+	DefaultVolumesPerNode = 0
 
 	KPEncryptionAlgorithm = "AES256" // https://github.com/IBM/ibm-cos-sdk-go/blob/master/service/s3/api.go#L9130-L9136