kernel: Copy patches from kernel 4.14 to 4.19

This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/hack-4.19/211-host_tools_portability.patch

@@ -0,0 +1,40 @@
+From 7f698012384ccb1ed10cc758acfd085096fdb307 Mon Sep 17 00:00:00 2001
+From: Felix Fietkau <nbd@nbd.name>
+Date: Fri, 7 Jul 2017 17:02:03 +0200
+Subject: kernel: fix linux 4.9 host tools portability issues
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ tools/build/Build.include       | 2 +-
+ tools/perf/pmu-events/jevents.c | 1 +
+ tools/perf/pmu-events/json.c    | 1 -
+ 3 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/tools/build/Build.include
++++ b/tools/build/Build.include
+@@ -98,4 +98,4 @@ cxx_flags = -Wp,-MD,$(depfile) -Wp,-MT,$
+ ###
+ ## HOSTCC C flags
+ 
+-host_c_flags = -Wp,-MD,$(depfile) -Wp,-MT,$@ $(CHOSTFLAGS) -D"BUILD_STR(s)=\#s" $(CHOSTFLAGS_$(basetarget).o) $(CHOSTFLAGS_$(obj))
++host_c_flags = -MD -MF $(depfile) -MT $@ $(CHOSTFLAGS) -D"BUILD_STR(s)=\#s" $(CHOSTFLAGS_$(basetarget).o) $(CHOSTFLAGS_$(obj))
+--- a/tools/perf/pmu-events/jevents.c
++++ b/tools/perf/pmu-events/jevents.c
+@@ -35,6 +35,7 @@
+ #include <stdlib.h>
+ #include <errno.h>
+ #include <string.h>
++#include <strings.h>
+ #include <ctype.h>
+ #include <unistd.h>
+ #include <stdarg.h>
+--- a/tools/perf/pmu-events/json.c
++++ b/tools/perf/pmu-events/json.c
+@@ -38,7 +38,6 @@
+ #include <unistd.h>
+ #include "jsmn.h"
+ #include "json.h"
+-#include <linux/kernel.h>
+ 
+ 
+ static char *mapfile(const char *fn, size_t *size)