brcm: add firmware for BCM4350 rev 5

Patch for brcmfmac has been submitted upstream and applied to the
wireless-drivers-next repo with commit fdf345642297 ("brcmfmac: Add
support for PCIE 4350 revision 5 device"). This patch adds the new
firmware file required for it.
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>

WHENCE

@@ -2016,6 +2016,7 @@ File: brcm/brcmfmac43242a.bin
 File: brcm/brcmfmac43143.bin
 File: brcm/brcmfmac43143-sdio.bin
 File: brcm/brcmfmac43455-sdio.bin
+File: brcm/brcmfmac4350c2-pcie.bin
 File: brcm/brcmfmac4350-pcie.bin
 File: brcm/brcmfmac4354-sdio.bin
 File: brcm/brcmfmac4356-pcie.bin