Forbid granting access to NLSes with too-long component names

This makes the limitation, which was previously only checked on the Settings UI, enforced everywhere.

Fixes: 260570119
Fixes: 286043036
Test: atest + manually
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:8a40b0b3a17658af16922b4ba99ccc4258af89f5)
Merged-In: I4c25d80978cb37a8fa1531f5045259d25ac64692
Change-Id: I4c25d80978cb37a8fa1531f5045259d25ac64692