armv8/ls2085a: Enable DSPI get input clk form 'mxc_get_clock'

Signed-off-by: Haikun Wang <haikun.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/arch/arm/include/asm/arch-fsl-lsch3/clock.h b/arch/arm/include/asm/arch-fsl-lsch3/clock.h
index 831af0b..62bc53c 100644
--- a/arch/arm/include/asm/arch-fsl-lsch3/clock.h
+++ b/arch/arm/include/asm/arch-fsl-lsch3/clock.h
@@ -16,6 +16,7 @@
 	MXC_UART_CLK,
 	MXC_ESDHC_CLK,
 	MXC_I2C_CLK,
+	MXC_DSPI_CLK,
 };
 
 unsigned int mxc_get_clock(enum mxc_clock clk);