ipq40xx: Fix board-2.bin package name for Plasma Cloud PA1200

The board data file for the Plasma Cloud PA1200 is not part of the default
board-2.bin which is shipped by ath10k-board-qca4019. A typo in the device
package name resulted in a not correctly selected package for the device
specific board-2.bin. The wifi driver has therefore loaded the wrong
calibration information into the wifi chip.

Fixes: ea5bb6bb ("ipq40xx: add support for Plasma Cloud PA1200")
Signed-off-by: Sven Eckelmann <sven@narfation.org>