ACPI: APEI: EINJ: Fix formatting errors

Checkpatch reveals warnings and an error due to missing lines and
incorrect indentations. Add the missing lines after declarations and
fix the suspect indentations.

Signed-off-by: Jay Lu <jaylu102@amd.com>
Signed-off-by: Ben Cheatham <benjamin.cheatham@amd.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>