docker: clang-android: Update to r487747 (17.0.0)
This resolves current breakage with next and mainline, due to lack of LLVM commit 5a3d6ce956c4 ("[Clang][Driver] Add KCFI to SupportsCoverage") in r475365b.
Link: https://github.com/ClangBuiltLinux/linux/issues/1743
Additionally, we are trying to validate this toolchain so that any necessary fixes can be cherry picked before the toolchain is frozen for updates. Please consider updating this in TuxSuite quickly so that our CI can chew on it for a couple of days.