Fixed aarch64 build.

Fixed aarch64 build.

PR sanitizer/79168
   * merge.sh (change_comment_headers): Don't remove 2nd and 3rd line
  if the 3rd line doesn't contain 'The LLVM Compiler Infrastructure'
  text.
  * sanitizer_common/sanitizer_linux_mips64.S: Regenerated.
  * sanitizer_common/sanitizer_linux_x86_64.S: Likewise.
  * tsan/tsan_ppc_regs.h: Likewise.
  * tsan/tsan_rtl_aarch64.S: Likewise.
  * tsan/tsan_rtl_mips64.S: Likewise.
  * tsan/tsan_rtl_ppc64.S: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@244844 138bc75d-0d04-0410-961f-82ee72b054a4

Change-Id: I384d6d121d2e0fcd2947400c14082f7b83e8cb20
Signed-off-by: Michail Kashkarov <m.kashkarov@partner.samsung.com>