arm/gcc: Tighten checks in check_effective_target_freorder
In check_effective_target_freorder we check to see if the target
supports -freorder-blocks-and-partition. However we disable
-freorder-blocks-and-partition when -fprofile-use is not supplied so for
some targets we'll not see any message about lack of support for
-freorder-blocks-and-partition unless -fprofile-use is also passed.
This commit extends check_effective_target_freorder to first try
-freorder-blocks-and-partition on its own, then try -fprofile-use and
-freorder-blocks-and-partition.