drivers: perf: Not enabled ARM64_BRBE by default

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8EC9K


CVE: NA

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

The BRBE feature depend on ARMV8 PMU hardware support for branch stack
sampling. Not enabled ARM64_BRBE by default.

Signed-off-by: Junhao He <hejunhao3@huawei.com>