servicemanager : use liblog logs

Fixing crash which is detected by servicemanger_fuzzer when random
string input is fed to servicemanager. Libbase based logs cause crashes
while printing string with random data. Using liblog based logs instead
of that.

Bug: 240461572
Test: m servicemanager_fuzzer
Change-Id: I0a79303faeaf6ca33dceb8f23239d531887563ab