[U-Boot] CONFIG_CMDLINE_EDITING breaks CONFIG_SYS_CBSIZE

[Frederik Kriewitz]

Hello,

I noticed that enabling CONFIG_CMDLINE_EDITING breaks CONFIG_SYS_CBSIZE.
Once CONFIG_CMDLINE_EDITING is enabled, it's not possible to enter
more than 256 characters (CONFIG_SYS_CBSIZE is ignored).

Probably related to
#define MAX_CMDBUF_SIZE         256
in common/main.c

I guess replacing MAX_CMDBUF_SIZE  with CONFIG_SYS_CBSIZE might help.
At the moment I don't have the time to check the code.