linux-yocto/5.4: update to v5.4.57

Updating linux-yocto/5.4 to the latest korg -stable release that comprises
the following commits:

    d9939285fc81 Linux 5.4.57
    ca7ace8fd26d bpf: sockmap: Require attach_bpf_fd when detaching a program
    9fe975acb53f selftests: bpf: Fix detach from sockmap tests
    c77610435355 ext4: fix direct I/O read error
    6330b0cb2ace arm64: Workaround circular dependency in pointer_auth.h
    f06d60ff794a random32: move the pseudo-random 32-bit definitions to prandom.h
    c131009987f2 random32: remove net_rand_state from the latent entropy gcc plugin
    7471f3228e7a random: fix circular include dependency on arm64 after addition of percpu.h
    50bf89625bba ARM: percpu.h: fix build error
    c15a77bdda2c random32: update the net random state on interrupt and activity

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>