testsuite, Darwin: Use the IOKit framework in framework-1.c [PR114049].

testsuite, Darwin: Use the IOKit framework in framework-1.c [PR114049].

The intent of the test is to show that we find a framework that
is installed in /System/Library/Frameworks when the user has added
a '-F' option.  The trick is to choose some header that is present
for all the Darwin versions we support and that does not contain any
content we cannot parse.  We had been using the Kernel framework for
this, but recent SDK versions have revealed that this is not suitable.

Replacing with a use of IOKit.

	PR target/114049

gcc/testsuite/ChangeLog:

	* gcc.dg/framework-1.c: Use an IOKit header instead of a
	Kernel one.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>