ppc64le: Fix config and timezone embedding.

[mastertheknife]

I hereby agree to the terms of the CLA available at: https://yandex.ru/legal/cla/?lang=en

Changelog category (leave one):

• Build/Testing/Packaging Improvement

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Fix ClickHouse's config embedding and cctz's timezone embedding on ppc64le.
...

Detailed description / Documentation draft:
Tested that clickhouse can find the embedded config, and verified just in case with readelf.
Fixes these errors:

cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server && cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/programs/server && /usr/bin/llvm-objcopy -I binary config.xml /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/config.xml.o && /usr/bin/llvm-objcopy --rename-section .data=.rodata,alloc,load,readonly,data,contents /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/config.xml.o /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/config.xml.o
/usr/bin/llvm-objcopy: error: '/root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/config.xml.o': The file was not recognized as a valid object file
[7/1702] Generating users.xml.o
FAILED: programs/server/users.xml.o 
cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server && cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/programs/server && /usr/bin/llvm-objcopy -I binary users.xml /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/users.xml.o && /usr/bin/llvm-objcopy --rename-section .data=.rodata,alloc,load,readonly,data,contents /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/users.xml.o /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/users.xml.o
/usr/bin/llvm-objcopy: error: '/root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/users.xml.o': The file was not recognized as a valid object file
[8/1702] Generating embedded.xml.o
FAILED: programs/server/embedded.xml.o 
cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server && cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/programs/server && /usr/bin/llvm-objcopy -I binary embedded.xml /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/embedded.xml.o && /usr/bin/llvm-objcopy --rename-section .data=.rodata,alloc,load,readonly,data,contents /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/embedded.xml.o /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/embedded.xml.o
/usr/bin/llvm-objcopy: error: '/root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/embedded.xml.o': The file was not recognized as a valid object file
[9/1702] Generating play.html.o
FAILED: programs/server/play.html.o 
cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server && cd /root/rpmbuild/BUILD/clickhouse-21.3.3.14/programs/server && /usr/bin/llvm-objcopy -I binary play.html /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/play.html.o && /usr/bin/llvm-objcopy --rename-section .data=.rodata,alloc,load,readonly,data,contents /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/play.html.o /root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/play.html.o
/usr/bin/llvm-objcopy: error: '/root/rpmbuild/BUILD/clickhouse-21.3.3.14/build/programs/server/play.html.o': The file was not recognized as a valid object file
...

...