clk: mvebu: add missing CESA gate clk

Even if not documented in the datasheet, the Armada 370 SoC can actually
gate the CESA (crypto engine) clock.
Add an entry in the gating_desc table to be able to reference the CESA
gateclk in the crypto node.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Michael Turquette <mturquette@linaro.org>

Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt

@@ -19,6 +19,7 @@ ID	Clock	Peripheral
 9	pex1	PCIe Cntrl 1
 15	sata0	SATA Host 0
 17	sdio	SDHCI Host
+23	crypto	CESA (crypto engine)
 25	tdm	Time Division Mplx
 28	ddr	DDR Cntrl
 30	sata1	SATA Host 0

drivers/clk/mvebu/armada-370.c

@@ -163,6 +163,7 @@ static const struct clk_gating_soc_desc a370_gating_desc[] __initconst = {
 	{ "pex1", "pex1_en", 9, 0 },
 	{ "sata0", NULL, 15, 0 },
 	{ "sdio", NULL, 17, 0 },
+	{ "crypto", NULL, 23, 0 },
 	{ "tdm", NULL, 25, 0 },
 	{ "ddr", NULL, 28, CLK_IGNORE_UNUSED },
 	{ "sata1", NULL, 30, 0 },