u-boot-dra7xx: add latest u-boot from the integration branch

While the code is being pulled from ti-u-boot integration tree, J6/DRA7xx bring up
is being done from a separate branch that does not include all the commits made
for am335x. Hence, until those branches are merged with the mainline and unified
in a single recipe, a separate recipe just for DRA7xx makes more sense. This
recipe should eventually go away and unified under u-boot-ti-staging one.

Signed-off-by: Denys Dmytriyenko <denys@ti.com>
Acked-by: Chase Maupin <chase.maupin@ti.com>

recipes-bsp/u-boot/u-boot-dra7xx_2013.04.bb

@@ -0,0 +1,16 @@
+require u-boot-ti.inc
+
+DESCRIPTION = "u-boot bootloader for TI devices"
+
+COMPATIBLE_MACHINE = "dra7xx-evm"
+
+PR = "r0+gitr${SRCPV}"
+
+SRC_URI = "git://git.ti.com/ti-u-boot/ti-u-boot.git;protocol=git;branch=${BRANCH}"
+
+BRANCH ?= "ti-u-boot-2013.04+"
+
+# This commit corresponds to ti2013.04.02 release tag
+SRCREV = "e2315adf674b60132f0c5c8fe6eac5d109b81688"
+
+SPL_BINARY = "MLO"