MDEV-33636: RPM caps is on mariadbd exe

Postfix on 51e3f1da that
mariadbd should be the executable name rather than capabilities
on a symlink.

cmake/cpack_rpm.cmake

@@ -183,7 +183,7 @@ ENDMACRO(SETA)
 IF (CMAKE_VERSION VERSION_GREATER 3.10.0)
   # cmake bug #14362
   SET(CPACK_RPM_server_USER_FILELIST ${CPACK_RPM_server_USER_FILELIST}
-      "%caps(cap_ipc_lock=pe) %{_sbindir}/mysqld"
+      "%caps(cap_ipc_lock=pe) %{_sbindir}/mariadbd"
       )
 ENDIF()