usbreset: Add missing header

Fixes undefined reference to strtoul

Signed-off-by: Rosen Penev <rosenp@gmail.com>
(cherry picked from commit 653e05d27f13fee2ab925031c5162ddb34b755f0)

package/utils/usbreset/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=usbreset
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 include $(INCLUDE_DIR)/package.mk
 

package/utils/usbreset/src/usbreset.c

@@ -37,6 +37,7 @@ Alan Stern
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <stdbool.h>
 #include <unistd.h>
 #include <fcntl.h>