Update 64bit tests to also use EMULATOR_BUILD_64BITS.

Following 18c664d these tests fail to compile on mac since they link to
a library that's not being built any more. Looks like these conditionals
were missed when introducing the define in af061c5.

Change-Id: I5c7ae3eefb31bbef43742c9f17f01ecf1270bb29
2 files changed