ARM: EXYNOS: Fix power domain name initialization

This patch adds initialization of name field in generic power domain
struct.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-exynos/pm_domains.c

@@ -98,7 +98,8 @@ static __init int exynos_pm_dt_parse_domains(void)
 			return -ENOMEM;
 		}
 
-		pd->name = np->name;
+		pd->pd.name = kstrdup(np->name, GFP_KERNEL);
+		pd->name = pd->pd.name;
 		pd->base = of_iomap(np, 0);
 		pd->pd.power_off = exynos_pd_power_off;
 		pd->pd.power_on = exynos_pd_power_on;