simpleperf: Stop building 32-bit binary on host

32-bit simpleperf binary isn't needed on host.
So stop building it, to avoid needing 32-bit libsimpleperf_readelf
on host.

Bug: 267670561
Test: mmma system/extras/simpleperf
Change-Id: Ib4ed2b94f9c177b40ea797b66e076af3b6f12425
1 file changed