This patch reverts patch "DWARFv5 default: Switch bolt tests to use
DWARFv4 since Bolt doesn't support v5 yet" and places the -gdwarf-4 flag
to the global cflags config file.
Reviewed By: Amir
Differential Revision: https://reviews.llvm.org/D118283
Summary:
This patch adds AArch64 relocations handling in case updating of
debug sections is enabled
Elvina Yakubova,
Advanced Software Technology Lab, Huawei
(cherry picked from FBD33077609)