arm64: versal-net: Remove current-speed from mini

U-Boot code is not reading this variable that's why remove it from DT.
PL011 code is automatically using CONFIG_BAUDRATE instead.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/3de28cc8bbf9571d24673a60809c2075fe2f44c3.1727247837.git.michal.simek@amd.com
1 file changed