s390/purgatory: disable branch profiling

stable inclusion
from stable-v5.10.186
commit 79cf5657be38ce545f955a6bcdc36d083304853f
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8J4KH

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=79cf5657be38ce545f955a6bcdc36d083304853f



--------------------------------

[ Upstream commit 03c5c83b ]

Avoid linker error for randomly generated config file that
has CONFIG_BRANCH_PROFILE_NONE enabled and make it similar
to riscv, x86 and also to commit 4bf3ec38 ("s390: disable
branch profiling for vdso").

Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>