wifi: rtw89: pci: correct ISR RDU bit for 8922AE

The interrupt status (ISR) bits of RX desc unavailable (RDU) for 8922AE
are B_BE_RDU_CH1_INT_V1 and B_BE_RDU_CH0_INT_V1. With wrong bits, if it
happens, driver can't recognize the situation and prompt a message.
Fix the definition accordingly.

Fixes: aa70f761 ("wifi: rtw89: pci: generalize interrupt status bits of interrupt handlers")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250227131907.9864-1-pkshih@realtek.com