xen/arm: mmu: add headers for missing declarations

The definitions needing the inclusion of asm/setup.h are
boot_{first,second,third}(_id)?, whereas vmap.h is needed by arch_vmap_virt_end.

No functional change.

Signed-off-by: Nicola Vetrini <nicola.vetrini@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

xen/arch/arm/mmu/setup.c

@@ -8,6 +8,7 @@
 #include <xen/init.h>
 #include <xen/libfdt/libfdt.h>
 #include <xen/sizes.h>
+#include <xen/vmap.h>
 
 #include <asm/fixmap.h>
 

xen/arch/arm/mmu/smpboot.c

@@ -7,6 +7,8 @@
 
 #include <xen/domain_page.h>
 
+#include <asm/setup.h>
+
 /*
  * Static start-of-day pagetables that we use before the allocators
  * are up. These are used by all CPUs during bringup before switching