arm: mvebu: axp: Properly check for Armada XP in mach/soc.h

File mach/soc.h is included also in 64-bit mvebu processors, so define
Armada XP related macros only when compiling for Armada XP.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
1 file changed