Convert Android.mk under system/extras/tests to Android.bp

Bug: 346889196
Test: m rand_emmc_perf
Test: atest kernel-config-unit-tests
Test: atest CtsKernelConfigTestCases
Test: atest scrape_mmap_addr
Test: atest pagingtest
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:fc2a380ea1541b7b048f0fec7305531ef0244f16)
Merged-In: I9f3b8aa7177b98f5ffa92e3b9054c4723157fca8
Change-Id: I9f3b8aa7177b98f5ffa92e3b9054c4723157fca8
6 files changed