arm: dts: sync dts for Action Semi S900

Synchronize device tree bindings with v5.5-rc6 tag with commit id
"b3a987b0264d".

Also, it removes older clock binding defined for S900 along with undocumented
compatible string "actions,s900-serial" from serial driver and adapts clock
driver to cater to new bindings.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
diff --git a/include/dt-bindings/reset/actions,s900-reset.h b/include/dt-bindings/reset/actions,s900-reset.h
new file mode 100644
index 0000000..42c19d0
--- /dev/null
+++ b/include/dt-bindings/reset/actions,s900-reset.h
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+//
+// Device Tree binding constants for Actions Semi S900 Reset Management Unit
+//
+// Copyright (c) 2018 Linaro Ltd.
+
+#ifndef __DT_BINDINGS_ACTIONS_S900_RESET_H
+#define __DT_BINDINGS_ACTIONS_S900_RESET_H
+
+#define RESET_CHIPID				0
+#define RESET_CPU_SCNT				1
+#define RESET_SRAMI				2
+#define RESET_DDR_CTL_PHY			3
+#define RESET_DMAC				4
+#define RESET_GPIO				5
+#define RESET_BISP_AXI				6
+#define RESET_CSI0				7
+#define RESET_CSI1				8
+#define RESET_DE				9
+#define RESET_DSI				10
+#define RESET_GPU3D_PA				11
+#define RESET_GPU3D_PB				12
+#define RESET_HDE				13
+#define RESET_I2C0				14
+#define RESET_I2C1				15
+#define RESET_I2C2				16
+#define RESET_I2C3				17
+#define RESET_I2C4				18
+#define RESET_I2C5				19
+#define RESET_IMX				20
+#define RESET_NANDC0				21
+#define RESET_NANDC1				22
+#define RESET_SD0				23
+#define RESET_SD1				24
+#define RESET_SD2				25
+#define RESET_SD3				26
+#define RESET_SPI0				27
+#define RESET_SPI1				28
+#define RESET_SPI2				29
+#define RESET_SPI3				30
+#define RESET_UART0				31
+#define RESET_UART1				32
+#define RESET_UART2				33
+#define RESET_UART3				34
+#define RESET_UART4				35
+#define RESET_UART5				36
+#define RESET_UART6				37
+#define RESET_HDMI				38
+#define RESET_LVDS				39
+#define RESET_EDP				40
+#define RESET_USB2HUB				41
+#define RESET_USB2HSIC				42
+#define RESET_USB3				43
+#define RESET_PCM1				44
+#define RESET_AUDIO				45
+#define RESET_PCM0				46
+#define RESET_SE				47
+#define RESET_GIC				48
+#define RESET_DDR_CTL_PHY_AXI			49
+#define RESET_CMU_DDR				50
+#define RESET_DMM				51
+#define RESET_HDCP2TX				52
+#define RESET_ETHERNET				53
+
+#endif /* __DT_BINDINGS_ACTIONS_S900_RESET_H */