wifi: brcmfmac: pcie: Add BCM4378B3 support

BCM4378B3 is a new silicon revision of BCM4378 present on the Apple M2
13" MacBook Pro "kyushu". Its PCI revision number is 5.

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Julian Calaby <julian.calaby@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230214092838.17869-1-marcan@marcan.st