msm: kgsl: Fix sizes of flag constants

Flag constants were used without being typecast to the correct types
at a few places. Add appropriate typecasts to make sure we set or clear
the bits we expect.

Change-Id: Ibfde9c561df0da6c59a9154bdd777c290bf15ad7
Signed-off-by: Lynus Vaz <lvaz@codeaurora.org>
diff --git a/drivers/gpu/msm/kgsl_iommu.c b/drivers/gpu/msm/kgsl_iommu.c
index d635519..938c96d 100644
--- a/drivers/gpu/msm/kgsl_iommu.c
+++ b/drivers/gpu/msm/kgsl_iommu.c
@@ -2600,7 +2600,7 @@
 
 static const struct {
 	char *feature;
-	int bit;
+	unsigned long bit;
 } kgsl_iommu_features[] = {
 	{ "qcom,retention", KGSL_MMU_RETENTION },
 	{ "qcom,global_pt", KGSL_MMU_GLOBAL_PAGETABLE },