vndk-def: Ignore ELF files with unknown machine ID

This commit starts ignoring ELF files with machine ID other than
EM_386, EM_MIPS, EM_ARM, EM_X86_64, and EM_AARCH64.

Bug: 64503245
Test: ./tests/test_elfdump.py

Change-Id: I10aac8b08e53aa464ebcb67ada65f9afe6d7d50e
Merged-In: I714163b4e258a5e2ff1191184c9e632787303637
(cherry picked from commit d2c161bc75fe03f422341e3b3e32d9f0515b612e)
1 file changed