Compiling the ltq-tapi driver against Linux 5.4 results in a compile
error complaining that the size of struct sched_param is not known.
Switch the existing "sched/types.h" include to reference
include/uapi/linux/sched/types.h to fix compilation against Linux 5.4.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
#include <linux/sched.h>
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,11,0))
+ #include <linux/sched/signal.h>
-+ #include <linux/sched/types.h>
++ #include <uapi/linux/sched/types.h>
+#endif
#undef CONFIG_DEVFS_FS
#ifndef UTS_RELEASE