mediatek: switch to fitblk for JDCloud RE-CP-03

Use the new fitblk driver.

Tested-By: Yangyu Chen <cyy@cyyself.name>
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

package/boot/uboot-envtools/files/mediatek_filogic

@@ -38,7 +38,8 @@ asus,rt-ax59u)
 	;;
 bananapi,bpi-r3|\
 bananapi,bpi-r3-mini|\
-bananapi,bpi-r4)
+bananapi,bpi-r4|\
+jdcloud,re-cp-03)
 	. /lib/upgrade/common.sh
 
 	bootdev="$(fitblk_get_bootdev)"
@@ -98,11 +99,6 @@ glinet,gl-mt6000)
 glinet,gl-mt3000)
 	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x80000" "0x20000"
 	;;
-jdcloud,re-cp-03)
-	local envdev=$(find_mmc_part "ubootenv" "mmcblk0")
-	ubootenv_add_uci_config "$envdev" "0x0" "0x40000" "0x40000" "1"
-	ubootenv_add_uci_config "$envdev" "0x40000" "0x40000" "0x40000" "1"
-	;;
 mercusys,mr90x-v1|\
 routerich,ax3000)
 	local envdev=/dev/mtd$(find_mtd_index "u-boot-env")

package/boot/uboot-mediatek/patches/441-add-jdcloud_re-cp-03.patch

@@ -271,7 +271,7 @@
 +serverip=192.168.1.254
 +loadaddr=0x46000000
 +console=earlycon=uart8250,mmio32,0x11002000 console=ttyS0
-+bootargs=root=/dev/mmcblk0p65
++bootargs=root=/dev/fit0 rootwait
 +bootcmd=if pstore check ; then run boot_recovery ; else run boot_emmc ; fi
 +bootconf=config-1
 +bootdelay=0