ANDROID: move builds to use gas prebuilts

Completes stage 5 of:
https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86/+/master/BINUTILS_KERNEL_DEPRECATION.md



Bug: 141693040
Test: remove host binutils (easy for cross compiling, hard for host
tools), rebuild multiple configs including cuttlefish configs which rely
on these.
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ia88f4f6572049c0173742aee95df824c0f31c050