Initialize PASSED_MLD counter before jump in LegacyApfFilter

Modified the LegacyApfFilter to ensure the PASSED_MLD counter is set up
prior to a jump to the mCountAndPassLabel.

Bug: 334794553
Test: TH
Change-Id: I2fa49a89ea9fd3cdd5c14d4a996e497777aa1a4c
1 file changed