simpleperf: use libsimpleperf_readelf for device build

libsimpleperf_readelf on host relies on some functions
only available in prebuilt libc++. So currently only
switch device build to libsimpleperf_readelf.

Bug: 267670561
Test: run simpleperf_unit_test
Change-Id: I4e5496d1b978b6e07804049dd18d433e5ef0428c
2 files changed