spi: npcm-pspi: add Arbel NPCM8XX support

Merge series from Tomer Maimon <tmaimon77@gmail.com>:

This patch set adds Arbel NPCM8XX Peripheral SPI (PSPI) support to PSPI NPCM
driver.

Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt

@@ -3,7 +3,8 @@ Nuvoton NPCM Peripheral Serial Peripheral Interface(PSPI) controller driver
 Nuvoton NPCM7xx SOC support two PSPI channels.
 
 Required properties:
- - compatible : "nuvoton,npcm750-pspi" for NPCM7XX BMC
+ - compatible : "nuvoton,npcm750-pspi" for Poleg NPCM7XX.
+				"nuvoton,npcm845-pspi" for Arbel NPCM8XX.
  - #address-cells : should be 1. see spi-bus.txt
  - #size-cells : should be 0. see spi-bus.txt
  - specifies physical base address and size of the register.

drivers/spi/spi-npcm-pspi.c

@@ -443,6 +443,7 @@ static int npcm_pspi_remove(struct platform_device *pdev)
 
 static const struct of_device_id npcm_pspi_match[] = {
 	{ .compatible = "nuvoton,npcm750-pspi", .data = NULL },
+	{ .compatible = "nuvoton,npcm845-pspi", .data = NULL },
 	{}
 };
 MODULE_DEVICE_TABLE(of, npcm_pspi_match);