brcm: add firmware files for BCM43602 PCIe device

This patch adds firmware files for the BCM43602 PCIe device
supported by brcmfmac. This device is used in router equipment
like Netgear R8000. For this reason there are two firmware
files in this patch.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>

WHENCE

@@ -1873,6 +1873,8 @@ File: brcm/brcmfmac43143.bin
 File: brcm/brcmfmac43143-sdio.bin
 File: brcm/brcmfmac4354-sdio.bin
 File: brcm/brcmfmac4356-pcie.bin
+File: brcm/brcmfmac43602-pcie.bin
+File: brcm/brcmfmac43602-pcie.ap.bin
 
 Licence: Redistributable. See LICENCE.broadcom_bcm43xx for details.