Move <thread_pointer.h> to kernel-independent sysdeps directories

Hurd is expected to use the same thread ABI as Linux.

Reviewed-by: Michael Jeanson <mjeanson@efficios.com>

diff --git a/sysdeps/csky/nptl/thread_pointer.h b/sysdeps/csky/thread_pointer.h
similarity index 100%
rename from sysdeps/csky/nptl/thread_pointer.h
rename to sysdeps/csky/thread_pointer.h

diff --git a/sysdeps/nptl/thread_pointer.h b/sysdeps/generic/thread_pointer.h
similarity index 100%
rename from sysdeps/nptl/thread_pointer.h
rename to sysdeps/generic/thread_pointer.h

diff --git a/sysdeps/hppa/nptl/thread_pointer.h b/sysdeps/hppa/thread_pointer.h
similarity index 100%
rename from sysdeps/hppa/nptl/thread_pointer.h
rename to sysdeps/hppa/thread_pointer.h

diff --git a/sysdeps/loongarch/nptl/thread_pointer.h b/sysdeps/loongarch/thread_pointer.h
similarity index 100%
rename from sysdeps/loongarch/nptl/thread_pointer.h
rename to sysdeps/loongarch/thread_pointer.h

diff --git a/sysdeps/m68k/nptl/thread_pointer.h b/sysdeps/m68k/thread_pointer.h
similarity index 100%
rename from sysdeps/m68k/nptl/thread_pointer.h
rename to sysdeps/m68k/thread_pointer.h

diff --git a/sysdeps/microblaze/nptl/thread_pointer.h b/sysdeps/microblaze/thread_pointer.h
similarity index 100%
rename from sysdeps/microblaze/nptl/thread_pointer.h
rename to sysdeps/microblaze/thread_pointer.h

diff --git a/sysdeps/or1k/nptl/thread_pointer.h b/sysdeps/or1k/thread_pointer.h
similarity index 100%
rename from sysdeps/or1k/nptl/thread_pointer.h
rename to sysdeps/or1k/thread_pointer.h

diff --git a/sysdeps/powerpc/nptl/thread_pointer.h b/sysdeps/powerpc/thread_pointer.h
similarity index 100%
rename from sysdeps/powerpc/nptl/thread_pointer.h
rename to sysdeps/powerpc/thread_pointer.h

diff --git a/sysdeps/riscv/nptl/thread_pointer.h b/sysdeps/riscv/thread_pointer.h
similarity index 100%
rename from sysdeps/riscv/nptl/thread_pointer.h
rename to sysdeps/riscv/thread_pointer.h

diff --git a/sysdeps/sparc/nptl/thread_pointer.h b/sysdeps/sparc/thread_pointer.h
similarity index 100%
rename from sysdeps/sparc/nptl/thread_pointer.h
rename to sysdeps/sparc/thread_pointer.h

diff --git a/sysdeps/x86/nptl/thread_pointer.h b/sysdeps/x86/thread_pointer.h
similarity index 100%
rename from sysdeps/x86/nptl/thread_pointer.h
rename to sysdeps/x86/thread_pointer.h