update sig cloud provider owners

This change updates the feature-approvers alias and the staging
directory for cloud-provider to include the current technical leaders
for the sig. Previous approvers who are no longer actively reviewing
have been moved to emeritus status.

OWNERS_ALIASES

@@ -539,9 +539,9 @@ aliases:
     - logicalhan
   feature-approvers:
     - adrianmoisey # Autoscaling
-    - andrewsykim # Cloud Provider
     - ardaguclu # CLI
     - aojea # Network, Testing
+    - cheftako # Cloud Provider
     - danwinship # Network
     - dashpole # Instrumentation
     - dchen1107 # Node
@@ -551,11 +551,13 @@ aliases:
     - dims # Architecture
     - dom4ha # Scheduling
     - eddiezane # CLI
+    - elmiko # Cloud Provider
     - enj # Auth
     - gjtempleton # Autoscaling
     - jackfrancis # Autoscaling
     - janetkuo # Apps
     - jayunit100 # Windows
+    - joelspeed # Cloud Provider
     - jpbetz # API Machinery
     - jsafrane # Storage
     - jsturtevant # Windows

staging/src/k8s.io/cloud-provider/OWNERS

@@ -1,11 +1,9 @@
 # See the OWNERS docs at https://go.k8s.io/owners
 
 approvers:
-  - mikedanese
-  - dims
-  - wlan0
-  - andrewsykim
   - cheftako
+  - elmiko
+  - joelspeed
 reviewers:
   - aojea
   - wojtek-t
@@ -25,6 +23,10 @@ reviewers:
   - wlan0
   - cheftako
   - andrewsykim
+emeritus_approvers:
+  - mikedanese
+  - dims
+  - andrewsykim
 labels:
   - sig/cloud-provider
   - area/cloudprovider