Put the emulator_x86_arm board back

ATV still needs it. ATV will make a local copy
of this board (as the only user) and after that
this change should be reverted.

Bug: 305610937
Test: presubmit
Change-Id: I873a49d0c61b2e9711a33d0ac407d4341601af61
Signed-off-by: Roman Kiryanov <rkir@google.com>
diff --git a/target/board/emulator_x86_arm/BoardConfig.mk b/target/board/emulator_x86_arm/BoardConfig.mk
new file mode 100644
index 0000000..21fdbc8
--- /dev/null
+++ b/target/board/emulator_x86_arm/BoardConfig.mk
@@ -0,0 +1,52 @@
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# x86 emulator specific definitions
+TARGET_CPU_ABI := x86
+TARGET_ARCH := x86
+TARGET_ARCH_VARIANT := x86
+
+TARGET_NATIVE_BRIDGE_ARCH := arm
+TARGET_NATIVE_BRIDGE_ARCH_VARIANT := armv7-a-neon
+TARGET_NATIVE_BRIDGE_CPU_VARIANT := generic
+TARGET_NATIVE_BRIDGE_ABI := armeabi-v7a armeabi
+
+BUILD_BROKEN_DUP_RULES := true
+
+#
+# The inclusion order below is important.
+# The settings in latter makefiles overwrite those in the former.
+#
+include build/make/target/board/BoardConfigMainlineCommon.mk
+include build/make/target/board/BoardConfigEmuCommon.mk
+
+# the settings differ from BoardConfigMainlineCommon.mk
+BOARD_USES_SYSTEM_OTHER_ODEX :=
+
+# Resize to 4G to accommodate ASAN and CTS
+BOARD_USERDATAIMAGE_PARTITION_SIZE := 4294967296
+
+BOARD_SEPOLICY_DIRS += device/generic/goldfish/sepolicy/x86
+
+# Wifi.
+BOARD_WLAN_DEVICE           := emulator
+BOARD_HOSTAPD_DRIVER        := NL80211
+BOARD_WPA_SUPPLICANT_DRIVER := NL80211
+BOARD_HOSTAPD_PRIVATE_LIB   := lib_driver_cmd_simulated
+BOARD_WPA_SUPPLICANT_PRIVATE_LIB := lib_driver_cmd_simulated
+WPA_SUPPLICANT_VERSION      := VER_0_8_X
+WIFI_DRIVER_FW_PATH_PARAM   := "/dev/null"
+WIFI_DRIVER_FW_PATH_STA     := "/dev/null"
+WIFI_DRIVER_FW_PATH_AP      := "/dev/null"
diff --git a/target/board/emulator_x86_arm/device.mk b/target/board/emulator_x86_arm/device.mk
new file mode 100644
index 0000000..af023eb
--- /dev/null
+++ b/target/board/emulator_x86_arm/device.mk
@@ -0,0 +1,18 @@
+#
+# Copyright (C) 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+PRODUCT_SOONG_NAMESPACES += device/generic/goldfish # for libwifi-hal-emu
+PRODUCT_SOONG_NAMESPACES += device/generic/goldfish-opengl # for goldfish deps.
diff --git a/target/board/emulator_x86_arm/system_ext.prop b/target/board/emulator_x86_arm/system_ext.prop
new file mode 100644
index 0000000..64829f3
--- /dev/null
+++ b/target/board/emulator_x86_arm/system_ext.prop
@@ -0,0 +1,5 @@
+#
+# system.prop for generic sdk
+#
+
+rild.libpath=/vendor/lib/libreference-ril.so