[POWERPC] Rename get_property to of_get_property: drivers

These are all the remaining instances of get_property.  Simple rename of
get_property to of_get_property.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h
index 3c85200..377bc60 100644
--- a/drivers/char/tpm/tpm_atmel.h
+++ b/drivers/char/tpm/tpm_atmel.h
@@ -52,7 +52,7 @@
 		return NULL;
 	}
 
-	reg = get_property(dn, "reg", &reglen);
+	reg = of_get_property(dn, "reg", &reglen);
 	naddrc = of_n_addr_cells(dn);
 	nsizec = of_n_size_cells(dn);