Lansdale Police are asking the public for help in finding a suspected drug smuggler.   52-year-old Glendon Fenty of Philadelphia has eluded capture since he fled from police about a year-and-a-half ago.   A felony warrant is out for his arrest for facilitating the transport of 203 pounds of marijuana from Arizona to Lansdale.   He sped away when police spotted him unloading bales of the drug from a tractor trailer into his pickup truck.