Add missing dependency and remove nogncheck.

Bug: b/251890128
Change-Id: Ie511aa9de38601914948c2583778fa4b6c891f98
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/278681
Commit-Queue: Xavier Lepaul‎ <xalep@webrtc.org>
Reviewed-by: Xavier Lepaul‎ <xalep@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38350}

sdk/android/BUILD.gn

@@ -570,6 +570,7 @@ if (current_os == "linux" || is_android) {
       "../../api:scoped_refptr",
       "../../api:sequence_checker",
       "../../api/task_queue:pending_task_safety_flag",
+      "../../modules/audio_processing:api",
       "../../rtc_base",
       "../../rtc_base:checks",
       "../../rtc_base:ip_address",

sdk/android/src/jni/pc/audio.h

@@ -12,9 +12,7 @@
 #define SDK_ANDROID_SRC_JNI_PC_AUDIO_H_
 
 #include "api/scoped_refptr.h"
-// Adding 'nogncheck' to disable the gn include headers check.
-// We don't want this target depend on audio related targets
-#include "modules/audio_processing/include/audio_processing.h"  // nogncheck
+#include "modules/audio_processing/include/audio_processing.h"
 
 namespace webrtc {
 namespace jni {