rk3568: loader: add support mlc nand flash

usbplug: build from rk_boot_all
	commit: 3fa77b1cfe: zftl: modify to support samsung ss14 8GB NAND FLASH
spl:
build command:
	./make.sh rk3568-nand
build from:
	fae486e4: power: regulator: Use dev_read_size in gpio-regulator
update feature:
	support mlc nand for rk3568
	fix L04A and L05B boot fail issue
        fix samsung ss14 read fail

Change-Id: I64e35aadf5f44c59c3791ef1ef693dadecab754c
Signed-off-by: Yifeng Zhao <yifeng.zhao@rock-chips.com>

RKBOOT/RK3568MINIALL_NAND.ini

@@ -0,0 +1,25 @@
+[CHIP_NAME]
+NAME=RK3568
+[VERSION]
+MAJOR=1
+MINOR=1
+[CODE471_OPTION]
+NUM=1
+Path1=bin/rk35/rk3568_ddr_1056MHz_v1.03.bin
+Sleep=1
+[CODE472_OPTION]
+NUM=1
+Path1=bin/rk35/rk356x_usbplug_nand_v1.04.bin
+[LOADER_OPTION]
+NUM=2
+LOADER1=FlashData
+LOADER2=FlashBoot
+FlashData=bin/rk35/rk3568_ddr_1056MHz_v1.03.bin
+FlashBoot=bin/rk35/rk356x_spl_nand_v1.06.bin
+[OUTPUT]
+PATH=rk356x_spl_loader_nand_v1.03.106.bin
+[SYSTEM]
+NEWIDB=true
+[FLAG]
+471_RC4_OFF=true
+RC4_OFF=true