meson: Fix pkgconfig generation
meson: Fix pkgconfig generation

Change-Id: I4670cf598dee2a4655985f58838080c0942679e2
Signed-off-by: William A. Kennington III <30fff5198f4d10ca1117e5f3ec82f3b4b8900d81@google.com>

openbmc/stdplus,openbmc/stdplus