[PATCH openbmc] meta-openpower: Bump pflash version to 5.2.1

[Stewart Smith]

OpenBMC Patches <openbmc-patches at stwcx.xyz> writes:
> From: Joel Stanley <joel at jms.id.au>
>
> No major changes.
>
> Upstream now carries the patch we had in tree, so that can go.
>
> Signed-off-by: Joel Stanley <joel at jms.id.au>

Acked-by: Stewart Smith <stewart at linux.vnet.ibm.com>

-- 
Stewart Smith
OPAL Architect, IBM.