Add OF_prop_free function as a counterpart for OF_*prop_alloc

- Introduce new OF API function OF_prop_free to free memory allocated by
  OF_getprop_alloc and OF_getencprop_alloc. Current code just calls free(9)
  with M_OFWPROP memory class which assumes knowledge about OF_*prop_alloc
  functions' internals and leads to unneccessary code coupling

- Convert some of the free(..., M_OFWPROP) instances to OF_prop_free

Files affected by this commit are the ones I was able to test on real
hardware. The rest of free(..., M_OFWPROP) instances will be handled with
idividual maintainers

Reviewed by:	andrew
Differential Revision:	https://reviews.freebsd.org/D6315

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/arm/ti/ti_pinmux.c b/sys/arm/ti/ti_pinmux.c
index ffeaf75aed78..0eeedbe50e10 100644
--- a/sys/arm/ti/ti_pinmux.c
+++ b/sys/arm/ti/ti_pinmux.c
@@ -361,7 +361,7 @@ ti_pinmux_configure_pins(device_t dev, phandle_t cfgxref)
 		ti_pinmux_write_2(sc, cfg->reg, cfg->conf);
 	}
 
-	free(cfgtuples, M_OFWPROP);
+	OF_prop_free(cfgtuples);
 
 	return (0);
 }