Integrate meta-seconorth-machine/add_custom_alt_bootscript

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Commit: seco-ne/yocto/layers/meta-seconorth-machine@ae0d8e91

bootscript:alt: Check for custom script and run it if found

The Flash-N-Go System bootscript should also check for an additional
custom bootscript and run it if one was found.

default.xml

@@ -21,7 +21,7 @@
     <project name="meta-qt5.git"                    revision="5b71df60e523423b9df6793de9387f87a149ac42"  remote="qt5-github"   path="sources/meta-qt5"                  />
     <project name="meta-freescale.git"              revision="dd98526300937450d741c9b3403799632f417226"  remote="fslc"         path="sources/meta-freescale"            />
     <project name="meta-freescale-distro.git"       revision="fc15f5003043da23212596be7366ae2547c308ad"  remote="fslc"         path="sources/meta-freescale-distro"     />
-    <project name="layers/meta-seconorth-machine"   revision="9da2c7a9fd63f5c7ffa7c7cb8b00b34989038347"  remote="seco-ne"      path="sources/meta-seconorth-machine"    />
+    <project name="layers/meta-seconorth-machine"   revision="ae0d8e914dd794907e006c44dc1383bcb584364e"  remote="seco-ne"      path="sources/meta-seconorth-machine"    />
     <project name="layers/meta-seconorth-distro"    revision="45fba11070ecc5d8037005aae1eda34a6c142bd1"  remote="seco-ne"      path="sources/meta-seconorth-distro"     />
     <project name="layers/meta-seconorth-nogplv3"   revision="a1d540c627d6084c35da405a9a27798a2ed66fc7"  remote="seco-ne"      path="sources/meta-seconorth-nogplv3"    />
     <project name="config"                          revision="e36c39b4be42a11140c01978ddc9ae8cc7423ce4"  remote="seco-ne"      path=".conf"                              >