drm/etnaviv: etnaviv_sched: Staticize functions when possible

etnaviv_sched_dependency() and etnaviv_sched_run_job() are only
used in this file, so make them static.

This fixes the following sparse warnings:

drivers/gpu/drm/etnaviv/etnaviv_sched.c:30:18: warning: symbol 'etnaviv_sched_dependency' was not declared. Should it be static?
drivers/gpu/drm/etnaviv/etnaviv_sched.c:81:18: warning: symbol 'etnaviv_sched_run_job' was not declared. Should it be static?
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drivers/gpu/drm/etnaviv/etnaviv_sched.c

@@ -27,7 +27,8 @@ module_param_named(job_hang_limit, etnaviv_job_hang_limit, int , 0444);
 static int etnaviv_hw_jobs_limit = 2;
 module_param_named(hw_job_limit, etnaviv_hw_jobs_limit, int , 0444);
 
-struct dma_fence *etnaviv_sched_dependency(struct drm_sched_job *sched_job,
+static struct dma_fence *
+etnaviv_sched_dependency(struct drm_sched_job *sched_job,
 			 struct drm_sched_entity *entity)
 {
 	struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
@@ -78,7 +79,7 @@ struct dma_fence *etnaviv_sched_dependency(struct drm_sched_job *sched_job,
 	return NULL;
 }
 
-struct dma_fence *etnaviv_sched_run_job(struct drm_sched_job *sched_job)
+static struct dma_fence *etnaviv_sched_run_job(struct drm_sched_job *sched_job)
 {
 	struct etnaviv_gem_submit *submit = to_etnaviv_submit(sched_job);
 	struct dma_fence *fence = NULL;