BuildFix:Put some variables under macros in gpio.c
BuildFix:Put some variables under macros in gpio.c

Change-Id: Ifb449c0a5a17b463b35236b04df410d369972b26
Signed-off-by: Alexander Antonov <d00ffc15517d30d0a30f763150bd6edd1d3b8c04@partner.samsung.com>

JunhwanPark/TizenRT,JunhwanPark/TizenRT,JunhwanPark/TizenRT,JunhwanPark/TizenRT,JunhwanPark/TizenRT,JunhwanPark/TizenRT