drivers/macintosh: adb: fix misleading Kconfig help text
drivers/macintosh: adb: fix misleading Kconfig help text

CONFIG_INPUT_KEYBDEV does not exist and no additional keyboard-specific
options are needed to get the keyboard working.

Signed-off-by: Aaro Koskinen <13423a3f3006b5859cfceae66d59451f5eb4e205@iki.fi>
Signed-off-by: Michael Ellerman <864f124608374e06e4da1fa5d2e47ed839b95411@ellerman.id.au>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs