net: brcmfmac: Convey execution context via argument to brcmf_netif_rx()

bcrmgf_netif_rx() uses in_interrupt to chose between netif_rx() and
netif_rx_ni(). in_interrupt() usage in drivers is phased out.

Convey the execution mode via an 'inirq' argument through the various
callchains leading to brcmf_netif_rx():

brcmf_pcie_isr_thread()		    <- Task context
  brcmf_proto_msgbuf_rx_trigger()
    brcmf_msgbuf_process_rx()
      brcmf_msgbuf_process_msgtype()
        brcmf_msgbuf_process_rx_complete()
	  brcmf_netif_mon_rx()
	     brcmf_netif_rx(isirq = false)
	  brcmf_netif_rx(isirq = false)

brcmf_sdio_readframes()  <- Task context sdio_claim_host() might sleep
  brcmf_rx_frame(isirq = false)

brcmf_sdio_rxglom()      <- Task context sdio_claim_host() might sleep
  brcmf_rx_frame(isirq = false)

brcmf_usb_rx_complete()  <- Interrupt context
  brcmf_rx_frame(isirq = true)

brcmf_rx_frame()
  brcmf_proto_rxreorder()
    brcmf_proto_bcdc_rxreorder()
      brcmf_fws_rxreorder()
        brcmf_netif_rx()
      brcmf_netif_rx()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>