disp: msm: rename dma-buf-map to iosys-map

The dma-buf-map struct has been renamed to iosys-map.
This change updates the usage of the struct and APIs in
the display driver.

Link: https://patchwork.freedesktop.org/patch/472236/

Change-Id: I5b48424dd5f8c60a28958a036ee2859963b059d2
Signed-off-by: GG Hou <quic_renjhou@quicinc.com>
Signed-off-by: Nilaan Gunabalachandran <quic_ngunabal@quicinc.com>

msm/msm_gem_prime.c

@@ -44,7 +44,13 @@ struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
 	return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
 }
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 19, 0))
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
+{
+	map->vaddr = msm_gem_get_vaddr(obj);
+	return IS_ERR_OR_NULL(map->vaddr);
+}
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
 int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 {
 	map->vaddr = msm_gem_get_vaddr(obj);
@@ -57,7 +63,9 @@ void *msm_gem_prime_vmap(struct drm_gem_object *obj)
 }
 #endif
 
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 19, 0))
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
+#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 15, 0))
 void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 #else
 void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)