Revert "selinux: Relocate ss_initialized and selinux_enforcing to separate 4k"

This reverts commit d4807bd6.

That out of tree patch causes the resulting kernel image to be too
large, causing ld.lld to error; likely due to the additional section and
alignment requirements.  Android and floral don't host virtual targets
and thus do not run at EL2 on arm64.

Bug: 63740206
Change-Id: I357bf4d5c7e29230746eacd51fef413acec06067
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>