[POWERPC] pasemi: Broaden specific references to 1682M

There will be more product numbers in the future than just PA6T-1682M,
but they will share much of the features. Remove some of the explicit
references and compatibility checks with 1682M, and replace most of them
with the more generic term "PWRficient".

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Doug Thompson <dougthompson@xmission.com>
diff --git a/drivers/char/hw_random/pasemi-rng.c b/drivers/char/hw_random/pasemi-rng.c
index fa6040b..24ae307 100644
--- a/drivers/char/hw_random/pasemi-rng.c
+++ b/drivers/char/hw_random/pasemi-rng.c
@@ -126,10 +126,9 @@
 }
 
 static struct of_device_id rng_match[] = {
-	{
-		.compatible      = "1682m-rng",
-	},
-	{},
+	{ .compatible      = "1682m-rng", },
+	{ .compatible      = "pasemi,pwrficient-rng", },
+	{ },
 };
 
 static struct of_platform_driver rng_driver = {