linux-yocto/5.10: update to v5.10.187

Updating  to the latest korg -stable release that comprises
the following commits:

    140d69b4e41d Linux 5.10.187
    93df00f9d48d x86/cpu/amd: Add a Zenbleed fix
    191b8f9b0e37 x86/cpu/amd: Move the errata checking functionality up
    113ce5ed59fc x86/microcode/AMD: Load late on both threads too

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>