apple: add support for enable-bitcode=bitcode

It seems to be the actual default for xcode, and not =full.

extras/package/apple/build.sh

@@ -126,7 +126,7 @@ usage()
     echo " --arch=ARCH      Architecture to build for"
     echo "                   (i386|x86_64|armv7|arm64)"
     echo " --sdk=SDK        Name of the SDK to build with (see 'xcodebuild -showsdks')"
-    echo " --enable-bitcode Enable bitcode for compilation, same as with =full"
+    echo " --enable-bitcode Enable bitcode for compilation, same as with =bitcode/full"
     echo " --enable-bitcode=marker Enable bitcode marker for compilation"
     echo " --enable-merge-plugins Enable the merging of plugins into a single archive"
     echo " --disable-debug  Disable libvlc debug mode (for release)"

extras/package/apple/xcode.sh

@@ -21,7 +21,7 @@ BUILD_SUFFIX=""
 BITCODE_FLAG=""
 if [ "$(echo "${ENABLE_BITCODE}" | tr '[:upper:]' '[:lower:]')" = "yes" ]; then
     if [ -z "${BITCODE_GENERATION_MODE}" ]; then
-        BITCODE_GENERATION_MODE=full
+        BITCODE_GENERATION_MODE=bitcode
     fi
     BITCODE_FLAG="--enable-bitcode=${BITCODE_GENERATION_MODE}"
     BUILD_SUFFIX="-bitcode-${BITCODE_GENERATION_MODE}" #TODO forward