i386: Replace -fcf-protection with -fcf-protection=branch
Since -mindirect-branch is incompatible with -fcf-protection=return and
-fcf-protection, replace -fcf-protection with -fcf-protection=branch.
PR target/87412
* gcc.target/i386/indirect-thunk-attr-14.c: Replace
-fcf-protection with -fcf-protection=branch.
* gcc.target/i386/indirect-thunk-attr-15.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-16.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-8.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-9.c: Likewise.
* gcc.target/i386/indirect-thunk-extern-10.c: Likewise.
From-SVN: r269074