clk: bcm2835: Add bindings for the auxiliary peripheral clock gates.

These will be used for enabling UART1, SPI1, and SPI2.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Turquette <mturquette@baylibre.com>

include/dt-bindings/clock/bcm2835-aux.h

@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2015 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#define BCM2835_AUX_CLOCK_UART		0
+#define BCM2835_AUX_CLOCK_SPI1		1
+#define BCM2835_AUX_CLOCK_SPI2		2
+#define BCM2835_AUX_CLOCK_COUNT		3