operator: add missing IaaDevicePlugin finalizers RBAC

[mythi]

Fixes: #1471

[codecov-commenter]

Codecov Report

Merging #1475 (0061d64) into main (0337834) will not change coverage.
The diff coverage is n/a.

❗ Current head 0061d64 differs from pull request most recent head 34baf98. Consider uploading reports for the commit 34baf98 to get more accurate results

@@           Coverage Diff           @@
##             main    #1475   +/-   ##
=======================================
  Coverage   50.10%   50.10%           
=======================================
  Files          43       43           
  Lines        4878     4878           
=======================================
  Hits         2444     2444           
  Misses       2295     2295           
  Partials      139      139           

Impacted Files	Coverage Δ
pkg/controllers/iaa/controller.go	6.89% <ø> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more