media: atomisp: atomisp_ioctl.c: get rid of a ISP2400/ISP2401 dependency

Replace #ifdef occurrences there with runtime checks.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/staging/media/atomisp/pci/atomisp2/atomisp_ioctl.h

@@ -27,15 +27,11 @@ struct atomisp_video_pipe;
 
 extern const struct atomisp_format_bridge atomisp_output_fmts[];
 
-const struct atomisp_format_bridge *atomisp_get_format_bridge(
-    unsigned int pixelformat);
-#ifndef ISP2401
-const struct atomisp_format_bridge *atomisp_get_format_bridge_from_mbus(
-    u32 mbus_code);
-#else
-const struct atomisp_format_bridge *atomisp_get_format_bridge_from_mbus(u32
-	mbus_code);
-#endif
+const struct
+atomisp_format_bridge *atomisp_get_format_bridge(unsigned int pixelformat);
+
+const struct
+atomisp_format_bridge *atomisp_get_format_bridge_from_mbus(u32 mbus_code);
 
 int atomisp_alloc_css_stat_bufs(struct atomisp_sub_device *asd,
 				uint16_t stream_id);