EDAC/device: Sanitize edac_device_alloc_ctl_info() definition

Shorten argument names, correct formatting, sort local vars in reverse
x-mas tree order.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220310095254.1510-5-bp@alien8.de