Python tries to use ncursesw from the host,
if it is not found causes an error on configure,
we should use ncursesw from sysroot instead


Signed-off-by: Alejandro Hernandez <alejandro.hernandez@linux.intel.com>

Index: Python-2.7.9/configure.ac
===================================================================
--- Python-2.7.9.orig/configure.ac
+++ Python-2.7.9/configure.ac
@@ -4311,7 +4311,7 @@ fi
 
 # first curses configure check
 ac_save_cppflags="$CPPFLAGS"
-CPPFLAGS="$CPPFLAGS -I/usr/include/ncursesw"
+CPPFLAGS="$CPPFLAGS -I=/usr/include/ncursesw"
 
 AC_CHECK_HEADERS(curses.h ncurses.h)