sysvinit: fix compilation error against musl

This commit adds a patch to the sysvinit package that fixes various
build issues against musl due to missing header includes.

Signed-off-by: Dagg Stompler <daggs@gmx.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/sysvinit/0002-musl-fix-compilation-errors.patch

@@ -0,0 +1,38 @@
+Fix various compilation errors when compiling against must libc
+
+Signed-off-by: Dagg Stompler <daggs@gmx.com>
+
+diff -Nupr a/src/init.c b/src/init.c
+--- a/src/init.c	2017-08-13 18:44:27.000000000 +0300
++++ b/src/init.c	2017-08-13 18:34:45.000000000 +0300
+@@ -37,6 +37,7 @@
+ #include <sys/kd.h>
+ #endif
+ #include <sys/resource.h>
++#include <sys/ttydefaults.h>
+ #include <stdlib.h>
+ #include <unistd.h>
+ #include <errno.h>
+diff -Nupr a/src/init.h b/src/init.h
+--- a/src/init.h	2017-08-13 19:35:46.000000000 +0300
++++ b/src/init.h	2017-08-13 19:36:01.000000000 +0300
+@@ -22,6 +22,8 @@
+  *
+  */
+ 
++#include <time.h>
++
+ /* Standard configuration */
+ #define CHANGE_WAIT 0			/* Change runlevel while
+ 					   waiting for a process to exit? */
+diff -Nupr a/src/mountpoint.c b/src/mountpoint.c
+--- a/src/mountpoint.c	2017-08-13 20:28:26.000000000 +0300
++++ b/src/mountpoint.c	2017-08-13 20:28:40.000000000 +0300
+@@ -24,6 +24,7 @@
+  */
+ 
+ #include <sys/stat.h>
++#include <sys/types.h>
+ #include <unistd.h>
+ #include <stdlib.h>
+ #include <string.h>