ppc/spapr_nvdimm: turn spapr_dt_nvdimm() static

This function is only used inside spapr_nvdimm.c.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200901125645.118026-3-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2 files changed