config: add cortex-a76 for meson

To make the list complete and consistent, add cortex-a76 configuration.

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

config/arm/meson.build

@@ -90,6 +90,7 @@ machine_args_generic = [
 	['0xd08', ['-mcpu=cortex-a72']],
 	['0xd09', ['-mcpu=cortex-a73']],
 	['0xd0a', ['-mcpu=cortex-a75']],
+	['0xd0b', ['-mcpu=cortex-a76']],
 	['0xd0c', ['-march=armv8.2-a+crc+crypto', '-mcpu=neoverse-n1'], flags_n1sdp_extra]]
 
 machine_args_cavium = [