drivers/gicv3: add debug log for maximum INTID of SPI and eSPI

Add debug log for the maximum supported INTID of SPI and eSPI on the
current GIC implementation.

Signed-off-by: Heyi Guo <guoheyi@linux.alibaba.com>
Change-Id: Ie45ab1d85b39658c4ca4bc54ee433ac44e41d03f
1 file changed