Tests install path fix for Android SDK.

CMakeLists.txt

@@ -268,13 +268,24 @@ if(WIN32)
     message(STATUS "Can't detect runtime and/or arch")
     set(OpenCV_INSTALL_BINARIES_PREFIX "")
   endif()
+elseif(ANDROID)
+  set(OpenCV_INSTALL_BINARIES_PREFIX "sdk/native/")
 else()
   set(OpenCV_INSTALL_BINARIES_PREFIX "")
 endif()
 
-set(OPENCV_SAMPLES_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}samples")
+if(ANDROID)
+  set(OPENCV_SAMPLES_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}samples/${ANDROID_NDK_ABI_NAME}")
+else()
+  set(OPENCV_SAMPLES_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}samples")
+endif()
+
+if(ANDROID)
+  set(OPENCV_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}bin/${ANDROID_NDK_ABI_NAME}")
+else()
+  set(OPENCV_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}bin")
+endif()
 
-set(OPENCV_BIN_INSTALL_PATH "${OpenCV_INSTALL_BINARIES_PREFIX}bin")
 if(NOT OPENCV_TEST_INSTALL_PATH)
   set(OPENCV_TEST_INSTALL_PATH "${OPENCV_BIN_INSTALL_PATH}")
 endif()