libsepol: opt-out of lto usage

libsepol: opt-out of lto usage

This fixes building with USE_LTO enabled.

<artificial>:(.text+0x4194): relocation R_MIPS16_26 against `cil_printf.lto_priv.0' cannot be used when making a shared object; recompile with -fPIC
./openwrt/staging_dir/toolchain-mips_24kc_gcc-12.3.0_musl/lib/gcc/mips-openwrt-linux-musl/12.3.0/../../../../mips-openwrt-linux-musl/bin/ld.bfd: non-dynamic relocations refer to dynamic symbol memcmp
./openwrt/staging_dir/toolchain-mips_24kc_gcc-12.3.0_musl/lib/gcc/mips-openwrt-linux-musl/12.3.0/../../../../mips-openwrt-linux-musl/bin/ld.bfd: failed to set dynamic section sizes: bad value
collect2: error: ld returned 1 exit status

Signed-off-by: Anari Jalakas <anari.jalakas@gmail.com>
(cherry picked from commit 1925a183a3f25d2db1f10addc85ed894df14c210)