libmeminfo_test: Use vendor api level in the tests am: 26a159dfb1 am: 589e148304 am: 0d93138df7

Original change: https://android-review.googlesource.com/c/platform/system/memory/libmeminfo/+/1877516

Change-Id: Ic90866f2b9dffaa717881c3d1aaa50cafb2947e6