TvProvider: fix null arg exception

In #call function, arg could be null for some methods. Previous change failed to take into account to it, this fix only parses arg with certain methods.

Change-Id: Ife0f62307957da308f8927ea6874dd3aa11b2f04
Test: verified by vendor
Bug: b/365086584
Flag: EXEMPT bugfix
1 file changed
tree: da89e5ad66363855e352c8349d50fdc11cbc1f49
  1. res/
  2. src/
  3. tests/
  4. Android.bp
  5. AndroidManifest.xml
  6. OWNERS