mxs-base.inc: Use 'fsl-dynamic-packagearch' class

Change-Id: I86c77a6aa19ee40b151246bb9531ff7194a4b983
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

conf/machine/include/mxs-base.inc

@@ -22,6 +22,16 @@ XSERVER = "xserver-xorg \
            xf86-input-evdev \
            xf86-video-fbdev"
 
+# Sub-architecture support
+MACHINE_SOCARCH ?= ""
+MACHINE_SOCARCH_mx23 = "${TUNE_PKGARCH}-mx23"
+MACHINE_SOCARCH_mx28 = "${TUNE_PKGARCH}-mx28"
+PACKAGE_EXTRA_ARCHS_append = " ${MACHINE_SOCARCH}"
+
+MACHINE_ARCH_FILTER = "virtual/kernel"
+
+INHERIT += "fsl-dynamic-packagearch"
+
 # Ship kernel modules
 MACHINE_EXTRA_RRECOMMENDS = "kernel-modules"