UPSTREAM: modules: unexport __module_text_address

__module_text_address is only used by built-in code.

Bug: 157965270
Bug: 171277690
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
(cherry picked from commit 3fe1e56d0e68b623dd62d8d38265d2a052e7e185)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1a9081c6fa3d2a6e27ede24a4fa2b6a220cd521d
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>