move namespace to vars pkg

[adrianchiris]

Namespace variable is used in both controllers and daemon. Move it to vars pkg and use in both.

[github-actions]

Thanks for your PR,
To run vendors CIs use one of:

• /test-all: To run all tests for all vendors.
• /test-e2e-all: To run all E2E tests for all vendors.
• /test-e2e-nvidia-all: To run all E2E tests for NVIDIA vendor.

To skip the vendors CIs use one of:

• /skip-all: To skip all tests for all vendors.
• /skip-e2e-all: To skip all E2E tests for all vendors.
• /skip-e2e-nvidia-all: To skip all E2E tests for NVIDIA vendor.
  Best regards.

[zeeke]

LGTM

[coveralls]

Pull Request Test Coverage Report for Build 7712091360

• -13 of 32 (59.38%) changed or added relevant lines in 9 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.05%) to 25.104%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/daemon/daemon.go	8	9	88.89%
pkg/daemon/event_recorder.go	0	1	0.0%
controllers/sriovoperatorconfig_controller.go	5	7	71.43%
pkg/daemon/writer.go	0	2	0.0%
controllers/sriovnetworknodepolicy_controller.go	1	8	12.5%

Totals
Change from base Build 7709129442:	0.05%
Covered Lines:	2776
Relevant Lines:	11058

---

💛 - Coveralls

[adrianchiris]

failure does not seem to be reelated. merging this one.