D14189: Android: Fix small build issues

[Aleix Pol Gonzalez]

apol created this revision.
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REVISION SUMMARY
  KDocTools isn't necessary for kstars_lite
  Make sure we error when building on a system that doesn't have dos2unix,
  makes finding what to do easier.
  Prefer checking if we're on android using __ANDROID__ which is the one
  defined by the NDK. See
  /opt/android-ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
  -E -dM - < /dev/null | grep -i android
  Define strings as QStrings, newer ki18n chokes on literals.
  Use qRound instead of std::round, just works, maybe it needed to add an

TEST PLAN
  Built it with KDE's binary-factory docker image, if this lands we'll get to include kstars in the nightly builds.

REPOSITORY
  R321 KStars

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D14189

AFFECTED FILES
  CMakeLists.txt
  android/3rdparty/libraw.patch
  kstars/CMakeLists.txt
  kstars/fitsviewer/fitsdata.cpp
  kstars/kstarslite.cpp

To: apol, #kde_edu
Cc: kde-edu, narvaez, apol
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