configs: amlogic: Disable CONFIG_NET_RANDOM_ETHADDR for android

The Khadas vim3 and vim3l defconfigs introduced with:
* f89b90d2 ("configs: add khadas-vim3{l}_android for AOSP support")
* 425f06f8 ("configs: prepare khadas-vim3{l}_ab_android for AOSP support")

were based on an outdated defconfig prior to the ede1f4f2 ("configs:
amlogic: Disable CONFIG_NET_RANDOM_ETHADDR when unnecessary") cleanup.

Disable CONFIG_NET_RANDOM_ETHADDR for the android configs as well to
stay consistent.

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Link: https://lore.kernel.org/r/20220112084023.2858375-1-mkorpershoek@baylibre.com


Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>