Basic: whitespace fixup for ARM target info

Fix whitespace.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@217955 91177308-0d34-0410-b5e6-96231b3b80d8
Basic: use range-based for loops for ARM target

Tweak handleTargetFeature for the ARM(32) target to use range based for loops.
NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@217956 91177308-0d34-0410-b5e6-96231b3b80d8