kernel: bump 4.19 to 4.19.90

Refreshed all patches.

Remove upstreamed:
- 010-dmaengine-dw-dmac-implement-dma-prot.patch
- 950-0148-Increase-firmware-call-buffer-size-to-48-bytes.patch
- 950-0206-Mailbox-firmware-calls-now-use-kmalloc-2749.patch
- 402-leds-trigger-netdev-fix-handling-on-interface-rename.patch

Fixes:
- CVE-2019-19332

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

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
[Add 010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/hack-4.19/902-debloat_proc.patch

@@ -243,7 +243,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  				&vmalloc_op,
 --- a/mm/vmstat.c
 +++ b/mm/vmstat.c
-@@ -1971,10 +1971,12 @@ void __init init_mm_internals(void)
+@@ -1972,10 +1972,12 @@ void __init init_mm_internals(void)
  	start_shepherd_timer();
  #endif
  #ifdef CONFIG_PROC_FS