Remove earlyprintk from bootargs for arm64 boards.
This option is only valid for arm:
```
Unknown kernel command line parameters "earlyprintk",
will be passed to user space.
```
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Link: https://github.com/openwrt/openwrt/pull/20140
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
setenv mmc_rootpart 2
part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_comp_addr_r uImage
-setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait earlycon=uart,mmio32,0x01c28000
+setenv bootargs console=ttyS0,115200 earlycon=uart,mmio32,0x01c28000 root=PARTUUID=${uuid} rootwait
setenv uenvcmd run loadkernel \&\& bootm \$kernel_comp_addr_r
run uenvcmd
setenv mmc_rootpart 2
part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_comp_addr_r uImage
-setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait
+setenv bootargs console=ttyS0,115200 root=PARTUUID=${uuid} rootwait
setenv uenvcmd run loadkernel \&\& bootm \$kernel_comp_addr_r
run uenvcmd
setenv mmc_rootpart 2
part uuid mmc ${mmc_bootdev}:${mmc_rootpart} uuid
setenv loadkernel fatload mmc \$mmc_bootdev \$kernel_comp_addr_r uImage
-setenv bootargs console=ttyS0,115200 earlyprintk root=PARTUUID=${uuid} rootwait
+setenv bootargs console=ttyS0,115200 root=PARTUUID=${uuid} rootwait
setenv uenvcmd run loadkernel \&\& bootm \$kernel_comp_addr_r
run uenvcmd