spmi: drop owner assignment from platform_drivers

A platform_driver does not need to set an owner, it will be populated by the
driver core.

Change-Id: Ib5006058cecc5e8e03b7124e0ee1d8eb0b4e4ede
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Git-commit: f271fbddfa3634fda9ea2baff047e128c9a18bf2
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Gilad Avidov <gavidov@codeaurora.org>