HID: amd_sfh: Correct the structure field name

Misinterpreted intr_enable field name. Hence correct the structure
field name accordingly to reflect the functionality.

Fixes: f264481a

 ("HID: amd_sfh: Extend driver capabilities for multi-generation support")
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>