kernel: bump 5.4 to 5.4.119

kernel: bump 5.4 to 5.4.119

Removed upstreamed:
  generic/backport-5.4/050-gro-fix-napi_gro_frags-Fast-GRO-breakage-due-to-IP-a.patch
  bcm63xx/patches-5.4/434-nand-brcmnand-fix-OOB-R-W-with-Hamming-ECC.patch*

Removed/code was included upstream and therefore redundant:
  ramips/patches-5.4/999-fix-pci-init-mt7620.patch

All other patches automatically rebased.

* update_kernel.sh did not flag this yet it was included in 5.4.119[1], as a
  result of the rebase, I removed my testing lines since I did not go back to
  test built or to run test 5.4.119 with the removed patch present.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.4.119&id=e5b3e69eb36ac1178a7a2392616fd29afd288c4e

Signed-off-by: John Audia <graysky@archlinux.us>