u-boot-ti: Move UBOOT_VERSION into dynamic layer

The gitpkgv class we are using to set UBOOT_VERSION is located in
meta-openembedded.  We do not want to depend on meta-openembedded to
keep meta-ti-bsp as light as possible, and the naming of UBOOT_VERSION
is not a requirement, just a nice to have.  Dynamic layers allow us to
use the class if it is available in the build, but not require it.

Signed-off-by: Ryan Eatmon <reatmon@ti.com>

meta-ti-bsp/conf/layer.conf

@@ -18,6 +18,14 @@ LAYERDEPENDS_meta-ti-bsp = " \
     meta-arm \
 "
 
+LAYERRECOMMENDS_meta-ti-bsp = " \
+    openembedded-layer \
+"
+
+BBFILES_DYNAMIC += " \
+    openembedded-layer:${LAYERDIR}/dynamic-layers/openembedded-layer/recipes*/*/*.bbappend \
+"
+
 SIGGEN_EXCLUDERECIPES_ABISAFE += " \
     mesa-pvr \
 "

meta-ti-bsp/dynamic-layers/openembedded-layer/recipes-bsp/u-boot/u-boot-ti-%.bbappend

@@ -0,0 +1,5 @@
+
+inherit gitpkgv
+PKGV = "${PV}${GITPKGV}"
+UBOOT_VERSION = "${PKGV}-${PKGR}"
+

meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc

@@ -5,10 +5,6 @@ do_compile:prepend () {
     echo ${scm_version} > ${S}/.scmversion
 }
 
-inherit gitpkgv
-PKGV = "${PV}${GITPKGV}"
-UBOOT_VERSION = "${PKGV}-${PKGR}"
-
 UBOOT_SUFFIX ?= "img"
 SPL_BINARY ?= "MLO"