Elm: add Bluetooth ID

DeviceID = bluetooth:00E0:244E:0400

BUG=chrome-os-partner:53481
TEST= 1. emerge-elm chromeos-bsp-elm
      2. cros deploy <dut_ip> chromeos-bsp-elm
      3. type 'bluetoothctl --> show' on DUT:
           Modalias: bluetooth:v00E0p244Ed0400

Change-Id: Id6926bf686f9dc495a484b487984846c6f1f7ec4
Signed-off-by: Milton Chiang <milton.chiang@mediatek.com>
Reviewed-on: https://chromium-review.googlesource.com/346370
Reviewed-by: Wei-Ning Huang <wnhuang@chromium.org>
Reviewed-by: Paris Yeh <pyeh@chromium.org>
(cherry picked from commit 7623b93923d179b447ddfe31e52166197f595af9)
Reviewed-on: https://chromium-review.googlesource.com/348556
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Commit-Queue: Daniel Kurtz <djkurtz@chromium.org>
Trybot-Ready: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Daniel Kurtz <djkurtz@chromium.org>
diff --git a/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1-r6.ebuild b/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1-r7.ebuild
similarity index 100%
rename from overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1-r6.ebuild
rename to overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1-r7.ebuild
diff --git a/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1.ebuild b/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1.ebuild
index f41e01b..bb3e784 100644
--- a/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1.ebuild
+++ b/overlay-elm/chromeos-base/chromeos-bsp-elm/chromeos-bsp-elm-0.0.1.ebuild
@@ -47,4 +47,8 @@
 
 	# Install script called by 99-mtk_drm_hdmi_load.rules
 	dosbin "${FILESDIR}"/hdcp_pass_key.sh
+
+	# Install Bluetooth ID override.
+	insinto "/etc/bluetooth"
+	doins "${FILESDIR}/main.conf"
 }
diff --git a/overlay-elm/chromeos-base/chromeos-bsp-elm/files/main.conf b/overlay-elm/chromeos-base/chromeos-bsp-elm/files/main.conf
new file mode 100644
index 0000000..df80881
--- /dev/null
+++ b/overlay-elm/chromeos-base/chromeos-bsp-elm/files/main.conf
@@ -0,0 +1,2 @@
+[General]
+DeviceID = bluetooth:00E0:244E:0400