Add first_perfer32 option to compile_multilib

NDK has 4 ABIs, i.e. x86, x86_64, armv7-a, armv8-a, but cintltst
can only compiled into single ABI, or otherwise, the java_test_host
CtsIcu4cTestCases can't include cintltst in the "data" property
because the "data" property can only include dependecies with
a single variant/ABI.

CtsIcu4cTestCases needs to use "data" property instead of
"host_required" dependency because "host_required" relationship
does not work for streaming the "general_tests" in the post-submit
infra-strucuture. See https://r.android.com/1175350 for the details.

Bug: 168445204
Bug: 160350521
Test: OUT_DIR=ndk_out build/soong/scripts/build-ndk-prebuilts.sh
Change-Id: I81429cc261ec4e25aefe363abb099048ff026505