Remove libbase dependency of sysprop_library

libbase dependency is not really needed, but it has been causing build
failure while linking with static variant of sysprop_library. This cuts
the dependency and only depend on libbase_headers and liblog.

Bug: 129301987
Test: 1) flash and boot walleye
Test: 2) try to build various properties with sysprop_library.
Test: 3) sysprop_test
Change-Id: Ieb0554471cf44e938b69793afa491ccaf77e70f0