staging: rtl8192e: Join constants RadioB_ArrayLength with ..LengthPciE

Join constants RadioB_ArrayLength with RadioB_ArrayLengthPciE to
RTL8192E_RADIO_B_ARR_LEN to improve readability.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/1f48c0691eb4627be81fc39d08762617a6c58a08.1678814935.git.philipp.g.hortmann@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>