drivers: core: fw_devlink: Fix excess parameter description in docstring

Replace the parameter name 'con' with 'con_handle' in the docstring of
__fw_devlink_relax_cycles() to resolve the kernel-doc warning about an
excess parameter description.

Address the following warning:
./drivers/base/core.c:1994: warning: Excess function parameter 'con' description in '__fw_devlink_relax_cycles'

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/all/20241107223528.3781323e@canb.auug.org.au/
Signed-off-by: Amit Vadhavana <av2082000@gmail.com>
Link: https://lore.kernel.org/r/20241111165253.16672-1-av2082000@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: AmitVadhavana14

drivers/base/core.c

@@ -1971,7 +1971,7 @@ static struct device *fwnode_get_next_parent_dev(const struct fwnode_handle *fwn
 
 /**
  * __fw_devlink_relax_cycles - Relax and mark dependency cycles.
- * @con: Potential consumer device.
+ * @con_handle: Potential consumer device fwnode.
  * @sup_handle: Potential supplier's fwnode.
  *
  * Needs to be called with fwnode_lock and device link lock held.