PackageKit: use the correct kernel headers.

The debug build of the packagefs kernel addon failed because user_memcpy had no type.
Using the correct headers for user_memcpy and IS_USER_ADDRESS fixed the issue.

src/kits/package/hpkg/DataReader.cpp

@@ -11,7 +11,10 @@
 #include <string.h>
 
 #if defined(_KERNEL_MODE) && !defined(_BOOT_MODE)
-#include <arch/user_memory.h>
+// for user_memcpy() and IS_USER_ADDRESS()
+#include <KernelExport.h>
+
+#include <kernel.h>
 #endif
 
 

src/kits/support/DataIO.cpp

@@ -16,7 +16,10 @@
 #include <Errors.h>
 
 #if defined(_KERNEL_MODE) && !defined(_BOOT_MODE)
-#include <arch/user_memory.h>
+// for user_memcpy() and IS_USER_ADDRESS()
+#include <KernelExport.h>
+
+#include <kernel.h>
 #endif