kernel: bump 4.14 to 4.14.159

Refreshed all patches.

Remove upstreamed:
- 302-0002-dmaengine-dw-implement-per-channel-protection-contro.patch

Fixes:
- CVE-2019-19332

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

target/linux/generic/hack-4.14/902-debloat_proc.patch

@@ -243,7 +243,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  }
 --- a/mm/vmstat.c
 +++ b/mm/vmstat.c
-@@ -1950,10 +1950,12 @@ void __init init_mm_internals(void)
+@@ -1951,10 +1951,12 @@ void __init init_mm_internals(void)
  	start_shepherd_timer();
  #endif
  #ifdef CONFIG_PROC_FS