hwmon: (g760a) fix checkpatch issues

fixed:
ERROR: code indent should use tabs where possible
+            fan speed PWM controller chip$

ERROR: trailing whitespace
+      http://www.gmt.com.tw/product/datasheet/EDS-760A.pdf $
Signed-off-by: NFrans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: NGuenter Roeck <guenter.roeck@ericsson.com>