Replace some ByteBuffers with DataSource

This avoids ByteArray 2GiB limit in a few places, but requires more
changes to SignApk to fully support large archives.

Bug: 302112430
Test: build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_x86_64 TARGET_RELEASE=trunk_staging CLANG_COVERAGE=true NATIVE_COVERAGE_PATHS="art external/aac external/boringssl external/conscrypt external/cpu_features external/dlmalloc external/fdlibm external/libaom external/libavc external/libcxx external/libfuse external/libgav1 external/libgsm external/libhevc external/libmpeg2 external/libopus external/libtextclassifier external/libvpx external/libxaac external/oj-libjdwp external/sonivox external/speex external/tremolo external/vixl frameworks/av frameworks/base/media libcore libnativehelper packages/modules/Bluetooth packages/modules/Connectivity packages/modules/DnsResolver packages/modules/ExtServices packages/modules/NetworkStack packages/modules/NeuralNetworks packages/modules/SdkExtensions packages/modules/StatsD packages/providers/MediaProvider system/core/base system/core/libcutils system/core/libstats system/media/audio_utils system/netd/resolv" com.android.art.testing
Change-Id: Ie7fc0bbce9ef43b6331143703ac5568cf1b2186a