xen: Move x86/arch specific components into RRECOMMENDS

* The xen-base specifies features that are specific to x86 targets,
  these components include xen-libblktap, xen-flask, xen-hvmloader and
  xen-xenpaging

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>

recipes-extended/xen/xen.inc

@@ -64,11 +64,9 @@ RDEPENDS_${PN}-base = "\
     ${PN}-libxenstore \
     ${PN}-libfsimage \
     ${PN}-fsimage \
-    ${PN}-hvmloader \
     ${PN}-scripts-block \
     ${PN}-scripts-network \
     ${PN}-udev \
-    ${PN}-xenpaging \
     ${PN}-xen-watchdog \
     ${PN}-xencommons \
     ${PN}-xendomains \
@@ -77,6 +75,13 @@ RDEPENDS_${PN}-base = "\
     ${PN}-xl \
     "
 
+RRECOMMENDS_${PN}-base = " \
+    ${PN}-libblktap \
+    ${PN}-flask \
+    ${PN}-hvmloader \
+    ${PN}-xenpaging \
+    "
+
 RDEPENDS_${PN}-misc = " \
     perl \
     python \