uboot-envtools: Update to version 2022.01

The sizes of the ipk changed on MIPS 24Kc like this:
13281 uboot-envtools_2021.01-54_mips_24kc.ipk
13308 uboot-envtools_2022.01-1_mips_24kc.ipk

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>