gallium: fix missing includes

src/gallium/drivers/identity/id_context.c

@@ -28,6 +28,7 @@
 
 #include "pipe/p_context.h"
 #include "util/u_memory.h"
+#include "util/u_inlines.h"
 
 #include "id_context.h"
 #include "id_objects.h"

src/gallium/drivers/softpipe/sp_state_sampler.c

@@ -30,6 +30,7 @@
  */
 
 #include "util/u_memory.h"
+#include "util/u_inlines.h"
 
 #include "draw/draw_context.h"
 #include "draw/draw_context.h"