Convert couple of cgroups settings to pointers

Converting to pointers to be consistent with other cgroups settings.

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

runtime_config_linux.go

@@ -195,7 +195,7 @@ type Network struct {
 	// Set class identifier for container's network packets
 	ClassID *uint32 `json:"classID"`
 	// Set priority of network traffic for container
-	Priorities []InterfacePriority `json:"priorities"`
+	Priorities []*InterfacePriority `json:"priorities,omitempty"`
 }
 
 // Resources has container runtime resource constraints
@@ -213,7 +213,7 @@ type Resources struct {
 	// BlockIO restriction configuration
 	BlockIO *BlockIO `json:"blockIO,omitempty"`
 	// Hugetlb limit (in bytes)
-	HugepageLimits []HugepageLimit `json:"hugepageLimits,omitempty"`
+	HugepageLimits []*HugepageLimit `json:"hugepageLimits,omitempty"`
 	// Network restriction configuration
 	Network *Network `json:"network,omitempty"`
 }