Prospective fix for Boot2Qt build in the CI

One of the parameters that Coin passes to configure is this:

    -device-option DISTRO_OPTS="hard-float boot2qt"

The configure script would "swallow" the quotes and end up calling qmake
with -device-option DISTRO_OPTS=hard-float boot2qt, causing qmake to
complain that the standalone "boot2qt" option is unknown.

Fix this by preserving the quotes in the forwarding helper functions.

Change-Id: I16098bd35acb579ebf183b0f7746af8758269e7c
Reviewed-by: Paolo Angelelli <paolo.angelelli@qt.io>

configure

@@ -974,7 +974,7 @@ IFS=$SAVED_IFS
 cmake $* "$relpath"
 }
 
-parseCommandline $@
+parseCommandline "$@"
 handleHelp
 if [ "$BUILD_WITH_CMAKE" = "yes" ]; then
     getCMakeCmdLine $@
@@ -984,8 +984,8 @@ else
     findAwk
     findMake
     checkQMakeEnv
-    checkTopLevelBuild $@
-    getOptAndQMakeCmdLines $@
+    checkTopLevelBuild "$@"
+    getOptAndQMakeCmdLines "$@"
     detectOperatingSystem
     maybeVerifyXcode
     detectQtVersion