Add libext 1.0.5 and libxi 1.2.1

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/packages/xorg-lib/libxext_1.0.5.bb

@@ -0,0 +1,10 @@
+require xorg-lib-common.inc
+
+DESCRIPTION = "X11 miscellaneous extension library"
+DEPENDS += "xproto virtual/libx11 xextproto libxau libxdmcp"
+PROVIDES = "xext"
+PE = "1"
+
+XORG_PN = "libXext"
+
+BBCLASSEXTEND = "sdk"

meta/packages/xorg-lib/libxi_1.2.1.bb

@@ -0,0 +1,8 @@
+require xorg-lib-common.inc
+
+DESCRIPTION = "X11 Input extension library"
+DEPENDS += "libxext inputproto"
+PE = "1"
+
+XORG_PN = "libXi"
+