Revert "usb: pl2303: increase the allowed baud rate range for the divisor based encod...

Revert "usb: pl2303: increase the allowed baud rate range for the divisor based encoding method"

This reverts commit e46e2291de0c270506bf0c87cc4b181fc062867d.

Revert all of the pl2303 changes that went into 3.12-rc1 and -rc2 as
they cause regressions on some versions of the chip.  This will all be
revisited for later kernel versions when we can figure out how to handle
this in a way that does not break working devices.

Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>