Fix compilation error when not using DRI

This patch complements 88f8b688e2316ae4a1f7485f0010ce90de54783a which
added uint64_t typed variables to avoid unsigned long overflows in
32-bit architectures but didn't include <stdint.h> with the required
definition.

When XF86DRI and _XF86DRI_SERVER_ are defined this header gets
indirectly included through "i830_dri.h", thanks to "i830_common.h"
which masquerades this problem as released in 2.1.0 and that manifests
with :

In file included from i810_driver.c:88:
i830.h:137: error: expected specifier-qualifier-list before 'uint64_t'
i830.h:240: error: expected specifier-qualifier-list before 'uint64_t'

Patch from Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/i830.h b/src/i830.h
index 8fea8c0f..9adbaf7d 100644
--- a/src/i830.h
+++ b/src/i830.h
@@ -40,6 +40,8 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define I830DEBUG
 #endif
 
+#include <stdint.h>
+
 #ifndef REMAP_RESERVED
 #define REMAP_RESERVED 0
 #endif