Fix missing #includes in system/core.

Change-Id: I4736e8c4f7bb8bb03640d26d58243efaa67dc75c

fastbootd/commands/partitions.c

@@ -31,6 +31,7 @@
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <sys/mman.h>
 #include <sys/stat.h>

fastbootd/config.c

@@ -29,6 +29,7 @@
  * SUCH DAMAGE.
  */
 
+#include <errno.h>
 #include <fcntl.h>
 #include <string.h>
 #include <unistd.h>

fastbootd/transport.c

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <errno.h>
 #include <pthread.h>
 #include <stddef.h>
 #include <stdio.h>

fastbootd/usb_linux_client.c

@@ -15,6 +15,7 @@
  */
 
 #include <endian.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <stdio.h>

fastbootd/utils.c

@@ -28,6 +28,7 @@
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>

libmemtrack/memtrack.c

@@ -20,6 +20,7 @@
 
 #include <log/log.h>
 
+#include <errno.h>
 #include <hardware/memtrack.h>
 
 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))

libprocessgroup/processgroup.cpp

@@ -19,6 +19,7 @@
 
 #include <assert.h>
 #include <dirent.h>
+#include <errno.h>
 #include <fcntl.h>
 #include <inttypes.h>
 #include <stdbool.h>

toolbox/getevent.c

@@ -10,6 +10,7 @@
 #include <sys/poll.h>
 #include <linux/input.h>
 #include <errno.h>
+#include <unistd.h>
 
 #include "getevent.h"
 

toolbox/ioctl.c

@@ -9,6 +9,7 @@
 #include <errno.h>
 #include <pthread.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 
 int ioctl_main(int argc, char *argv[])
 {

toolbox/ps.c

@@ -1,15 +1,13 @@
+#include <ctype.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <pwd.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <ctype.h>
-#include <fcntl.h>
-
 #include <string.h>
-
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <dirent.h>
-
-#include <pwd.h>
+#include <unistd.h>
 
 #include <cutils/sched_policy.h>
 

toolbox/r.c

@@ -5,6 +5,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <unistd.h>
 
 #if __LP64__
 #define strtoptr strtoull

toolbox/sendevent.c

@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 
 int sendevent_main(int argc, char *argv[])
 {

toolbox/smd.c

@@ -3,6 +3,7 @@
 #include <string.h>
 #include <fcntl.h>
 #include <errno.h>
+#include <unistd.h>
 
 int smd_main(int argc, char **argv)
 {

toolbox/touch.c

@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <fcntl.h>
 #include <time.h>
+#include <unistd.h>
 
 static void usage(void)
 {

toolbox/uptime.c

@@ -36,7 +36,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <time.h>
-
+#include <unistd.h>
 
 static void format_time(int time, char* buffer) {
     int seconds, minutes, hours, days;