Remove resource requests for sriov-fec-operator controller-manager pod

Considering the change below, which will modify the sriov-fec-operator
app to run on platform cores, this task disables the resource
requests for the controller-manager pod in order to avoid any requests
made by platform apps. What would be undesirable since such requests,
currently, are being counted for application cores.

Test plan:
PASS - Check if the controller-manager pod are no longer requesting
       resources

Story: 2010826
Task: 48657

Depends-On: https://review.opendev.org/c/starlingx/integ/+/891559

Change-Id: I0f1eda1f6176cb5f50db090d2926435c31ce0ef5
Signed-off-by: Marcos Paulo Oliveira Silva <Marcos.PauloOliveiraSilva@windriver.com>

stx-sriov-fec-operator-helm/stx-sriov-fec-operator-helm/helm-charts/sriov-fec-operator/templates/deployment.yaml

@@ -80,8 +80,8 @@ spec:
             cpu: 200m
             memory: 100Mi
           requests:
-            cpu: 100m
+            cpu: 0m
-            memory: 20Mi
+            memory: 0Mi
         securityContext:
           allowPrivilegeEscalation: false
           readOnlyRootFilesystem: true
@@ -106,8 +106,8 @@ spec:
             cpu: 500m
             memory: 128Mi
           requests:
-            cpu: 5m
+            cpu: 0m
-            memory: 64Mi
+            memory: 0Mi
         securityContext:
           allowPrivilegeEscalation: false
           runAsNonRoot: true