Include stdint.h in where it's used

stdint.h was added to use exact-width int types[1] but later these were
all moved to .c file.

[1] 89721c5d17
[2] f81a59b592

Change-Id: I06f83b818da1291669c8ab90ac7e8595f144d8a5

src/c/pyeclib_c/pyeclib_c.c

@@ -24,6 +24,7 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <stdint.h>
 #include <stdio.h>
 #include <paths.h>
 #define PY_SSIZE_T_CLEAN

src/c/pyeclib_c/pyeclib_c.h

@@ -27,9 +27,6 @@
 #ifndef __PYEC_LIB_C_H_
 #define __PYEC_LIB_C_H_
 
-/* For exact-width integer types */
-#include <stdint.h>
-
 typedef struct pyeclib_s
 {
   int             ec_desc;