xlat v2: Remove architectural headers

They only contained one function that is easily integrated in the private
library header and the existing architectural C files.

This also helps making the library more portable, as the Makefile of the
library now doesn't use the variable INCLUDES, which is specific to this
codebase and doesn't respect the namespace of the library.

Change-Id: I22228e6a97e9b4f346f5cd8947609263e8df71d8
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/lib/xlat_tables_v2/aarch32/xlat_tables_arch.c b/lib/xlat_tables_v2/aarch32/xlat_tables_arch.c
index 6e97192..2eae79c 100644
--- a/lib/xlat_tables_v2/aarch32/xlat_tables_arch.c
+++ b/lib/xlat_tables_v2/aarch32/xlat_tables_arch.c
@@ -50,6 +50,11 @@
 	return (read_sctlr() & SCTLR_M_BIT) != 0;
 }
 
+uint64_t xlat_arch_regime_get_xn_desc(int xlat_regime __unused)
+{
+	return UPPER_ATTRS(XN);
+}
+
 void xlat_arch_tlbi_va(uintptr_t va)
 {
 	/*