MIPS: Netlogic: XLP2xx update for I2C controller

XLP2xx has a new I2C controller which has 4 buses connected to
it. Update the IO offset and IRQ mapping code to reflect this.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5707/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --cc arch/mips/include/asm/netlogic/xlp-hal/iomap.h
Simple merge

diff --cc arch/mips/include/asm/netlogic/xlp-hal/xlp.h
Simple merge

diff --cc arch/mips/netlogic/xlp/nlm_hal.c
Simple merge