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-4.19/321-powerpc_crtsavres_prereq.patch

@@ -0,0 +1,38 @@
+From 107c0964cb8db7ca28ac5199426414fdab3c274d Mon Sep 17 00:00:00 2001
+From: "Alexandros C. Couloumbis" <alex@ozo.com>
+Date: Fri, 7 Jul 2017 17:14:51 +0200
+Subject: hack: arch: powerpc: drop register save/restore library from modules
+
+Upstream GCC uses a libgcc function for saving/restoring registers. This
+makes the code bigger, and upstream kernels need to carry that function
+for every single kernel module. Our GCC is patched to avoid those
+references, so we can drop the extra bloat for modules.
+
+lede-commit: e8e1084654f50904e6bf77b70b2de3f137d7b3ec
+Signed-off-by: Alexandros C. Couloumbis <alex@ozo.com>
+---
+ arch/powerpc/Makefile | 1 -
+ 1 file changed, 1 deletion(-)
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -59,19 +59,6 @@ machine-$(CONFIG_PPC64) += 64
+ machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
+ UTS_MACHINE := $(subst $(space),,$(machine-y))
+ 
+-# XXX This needs to be before we override LD below
+-ifdef CONFIG_PPC32
+-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+-else
+-ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
+-# Have the linker provide sfpr if possible.
+-# There is a corresponding test in arch/powerpc/lib/Makefile
+-KBUILD_LDFLAGS_MODULE += --save-restore-funcs
+-else
+-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+-endif
+-endif
+-
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ override LD	+= -EL
+ LDEMULATION	:= lppc