module: wrapper for symbol name.

This trivial wrapper adds clarity and makes the following patch
smaller.

CRs-Fixed: 982779
Change-Id: I4473936f59516aa4cf571d5e20d38a709d46dcf9
Cc: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Git-commit: 2e7bac536106236104e9e339531ff0fcdb7b8147
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Sanrio Alvares <salvares@codeaurora.org>