ARM: 9319/1: sa1111: fix sa1111_probe kernel-doc warnings

ARM: 9319/1: sa1111: fix sa1111_probe kernel-doc warnings

Document only the platform_driver probe entry point in kernel-doc
to prevent kernel-doc warnings:

sa1111.c:802: warning: Function parameter or member 'me' not described in '__sa1111_probe'
sa1111.c:802: warning: Function parameter or member 'mem' not described in '__sa1111_probe'
sa1111.c:802: warning: Function parameter or member 'irq' not described in '__sa1111_probe'
sa1111.c:802: warning: expecting prototype for sa1111_probe(). Prototype was for __sa1111_probe() instead

Also, use ReST list format to enumerate the return values.

Link: https://lore.kernel.org/oe-kbuild-all/202308112255.SK1J0rze-lkp@intel.com/
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: patches@armlinux.org.uk
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>