powershare: Make WIRELESS_TX_ENABLE_PATH configurable via Soong flag

Change-Id: I73a42f167c9d332f05e23bd00db19c0a1f9fe672

hidl/powershare/Android.bp

@@ -4,9 +4,29 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 
+soong_config_module_type {
+    name: "xiaomi_powershare_hal_cc_defaults",
+    module_type: "cc_defaults",
+    config_namespace: "XIAOMI_POWERSHARE",
+    value_variables: ["WIRELESS_TX_ENABLE_PATH"],
+    properties: ["cppflags"],
+}
+
+xiaomi_powershare_hal_cc_defaults {
+    name: "xiaomi_powershare_hal_defaults",
+    soong_config_variables: {
+        WIRELESS_TX_ENABLE_PATH: {
+            cppflags: ["-DWIRELESS_TX_ENABLE_PATH=\"%s\""],
+        },
+    },
+}
+
 cc_binary {
     name: "vendor.lineage.powershare@1.0-service.xiaomi",
-    defaults: ["hidl_defaults"],
+    defaults: [
+        "hidl_defaults",
+        "xiaomi_powershare_hal_defaults",
+    ],
     relative_install_path: "hw",
     init_rc: ["vendor.lineage.powershare@1.0-service.xiaomi.rc"],
     vintf_fragments: ["vendor.lineage.powershare@1.0-service.xiaomi.xml"],

hidl/powershare/PowerShare.cpp

@@ -16,8 +16,6 @@ namespace powershare {
 namespace V1_0 {
 namespace implementation {
 
-#define WIRELESS_TX_ENABLE_PATH "/proc/wireless/enable_tx"
-
 /*
  * Write value to path and close file.
  */