Add MTE ELF note to makefile-generated native tests.

The MTE ELF note is intended to be added to all aarch64 test binaries.
This is already implemented for cc_test in soong, but we should also add
it to makefile-generated tests.

Bug: 156029370
Bug: 181133973

Test: atest CtsBionicTestCases on QEMU+MTE, observe previously-failing
      tests will now succeed.
Test: m camera_client_test; readelf -t <snip>/camera_client_test | grep
      memtag, make sure there's the elf note.

Change-Id: I2e7c4d1379ccdef04f05dd7aff675e6834d4799b