Fix trigger never fire on executing an instruction on plugin devices (#1084)

The trigger matching only checks on TLB hit (after refill_tlb()).
However, instructions on plugin devices will never be filled into
the TLB; thus, triggers cannot fire when executing instructions on
the plugin devices.

The PR removes the if-condition of TLB hit for trigger checking.

Co-authored-by: Howard Yen-Hao Chen <yhchen@andestech.com>