[uboot] porting cvitek asic chips:

1. add cvitek folders to u-boot-2021.10
	2. add cv183x/cv182x part
	3. add cv181x/cv180x part

Change-Id: I6dc2e5ff509dbab16bd60bfb3fd61852da5e01f6

u-boot-2021.10/include/spi_flash.h

@@ -13,6 +13,14 @@
 #include <linux/mtd/spi-nor.h>
 
 struct udevice;
+#define CONFIG_ENV_SPI_BUS	0
+#define CONFIG_ENV_SPI_CS	0
+#define CONFIG_ENV_SPI_MAX_HZ	75000000
+#define CONFIG_ENV_SPI_MODE	0x0
+
+/* Alec Todo: should move to spinor defconfig */
+#define CONFIG_SF_DEFAULT_CS 0
+#define CONFIG_SF_DEFAULT_BUS 0
 
 /* by default ENV use the same parameters than SF command */
 #ifndef CONFIG_ENV_SPI_BUS