bugfix: ensure that we don't panic on DP validations

[vasrem]

Before, if a user wouldn't specify config for any of the rdma shared DP or sriov DP, the process would panic. This is now fixed.

Also, split a function into 2 to pass the linter.

[coveralls]

Pull Request Test Coverage Report for Build 10920979116

Details

• 37 of 43 (86.05%) changed or added relevant lines in 1 file are covered.
• 17 unchanged lines in 4 files lost coverage.
• Overall coverage increased (+0.4%) to 60.537%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
api/v1alpha1/validator/nicclusterpolicy_webhook.go	37	43	86.05%

Files with Coverage Reduction	New Missed Lines	%
pkg/state/state_hostdevice_network.go	2	78.38%
controllers/hostdevicenetwork_controller.go	2	89.77%
pkg/state/state_skel.go	4	83.63%
controllers/nicclusterpolicy_controller.go	9	75.31%

Totals
Change from base Build 10916956528:	0.4%
Covered Lines:	3335
Relevant Lines:	5509

---

💛 - Coveralls

[almaslennikov]

LGTM once CI passes

[vasrem]

/retest-image_scan