<rdar://problem/16144508> [iOS] Some definitions of INSTALL_PATH don’t account for INSTALL_PATH_PREFIX
https://bugs.webkit.org/show_bug.cgi?id=129241

Reviewed by Mark Rowe.

* Configurations/Base.xcconfig: Define INSTALL_PATH here in terms of INSTALL_PATH_ACTUAL.
* Configurations/BaseLegacyProcess.xcconfig: Define only INSTALL_PATH_ACTUAL.
* Configurations/BaseTarget.xcconfig: Simplify the definition of
NORMAL_WEBKIT2_FRAMEWORKS_DIR, now that it shouldn’t include SDKROOT for the Simulator.
* Configurations/BaseXPCService.xcconfig: Define only INSTALL_PATH_ACTUAL.
* Configurations/WebKit2.xcconfig: Ditto.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@164576 268f45cc-cd09-0410-ab3c-d52691b4dbfc