This fixes the following compile error with musl libc:
drivers/bus/fslmc/qbman/include/compat.h:41:10: error:
'stdout' undeclared (first use in this function)
fflush(stdout); \
^~~~~~
Fixes: 531b17a780dc ("bus/fslmc: add QBMAN driver to bus")
Cc: stable@dpdk.org
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>