fixup missing assert includes

src/i830_driver.c

@@ -165,6 +165,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define PRINT_MODE_INFO 0
 #endif
 
+#include <assert.h>
 #include <string.h>
 #include <stdio.h>
 #include <unistd.h>

src/i830_memory.c

@@ -99,6 +99,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "config.h"
 #endif
 
+#include <assert.h>
 #include <string.h>
 
 #include "xf86.h"

src/i830_xaa.c

@@ -48,6 +48,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "config.h"
 #endif
 
+#include <assert.h>
 #include "xf86.h"
 #include "xaarop.h"
 #include "i830.h"

src/i965_render.c

@@ -30,6 +30,7 @@
 #include "config.h"
 #endif
 
+#include <assert.h>
 #include "xf86.h"
 #include "i830.h"
 #include "i915_reg.h"