Use make.exe instead of absolute path

Build/Scripts/Windows/CompileAndroid.bat

@@ -1,3 +1,3 @@
 SET PATH=%ANDROID_NDK%\prebuilt\windows-x86_64\bin\;%ANDROID_NDK%\prebuilt\windows\bin\;%PATH%
 cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=../../../Build/CMake/Toolchains/android.toolchain.cmake -DCMAKE_BUILD_TYPE=%1 ../../../
-%ANDROID_NDK%\prebuilt\windows\bin\make.exe -j4
+make.exe -j4