Update matchAllRuleAllowed flag condition

To satisfy LTE/NR private networks where both APN name and traffic descriptor are empty.

Fix: 291528906
Test: manual phone call + data browsing
Test: reporter verified at b/291528906#comment126
Test: daily test b/296088621
Change-Id: I01bf371038393b08382a8924aeecfc089ed17718
Merged-In: I01bf371038393b08382a8924aeecfc089ed17718
(cherry picked from commit b19759ba)