build: add support for Android NDK path configuration

pkg/simdutf/build.zig

@@ -20,6 +20,11 @@ pub fn build(b: *std.Build) !void {
         try apple_sdk.addPaths(b, lib);
     }
 
+    if (target.result.abi.isAndroid()) {
+        const android_ndk = @import("android_ndk");
+        try android_ndk.addPaths(b, lib);
+    }
+
     var flags: std.ArrayList([]const u8) = .empty;
     defer flags.deinit(b.allocator);
     // Zig 0.13 bug: https://github.com/ziglang/zig/issues/20414

pkg/simdutf/build.zig.zon

@@ -5,5 +5,6 @@
     .paths = .{""},
     .dependencies = .{
         .apple_sdk = .{ .path = "../apple-sdk" },
+        .android_ndk = .{ .path = "../android-ndk" },
     },
 }