kernel: mm: Include missing header

mm.h uses sys_mm_is_virt_addr_in_range() that is declared in
sys/mem_manage.h.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>

include/zephyr/kernel/internal/mm.h

@@ -56,6 +56,7 @@
 #include <stddef.h>
 #include <inttypes.h>
 #include <zephyr/sys/__assert.h>
+#include <zephyr/sys/mem_manage.h>
 
 /* Just like Z_MEM_PHYS_ADDR() but with type safety and assertions */
 static inline uintptr_t z_mem_phys_addr(void *virt)