Since the raw keymap already has a capacity of holding all present keys,

Since the raw keymap already has a capacity of holding all present keys,
use it as a lookup table using the bit as the index. Removes the need to
linearly scan the same keymap during handling of a key press, not that
performance matters here since the length of the keymap is small but the
code gets a bit simpler and one struct becomes redundant.

While here, fix two incorrect conditionals in ucc_parse_hid() which
compared two different quantities.