tree d703bb51b44b6f74a5277b1deb1bcca2dcacc21e
parent 4d7d2f440d2264dad202d37ca80b21c440dae19f
author Tom Finegan <tomfinegan@google.com> 1570205787 -0700
committer Tom Finegan <tomfinegan@google.com> 1570467909 +0000

cmake: tolower cpu string before detecting target.

Always tolower the processor string and use the lowercase form
when doing string compares to detect the target processor.

BUG=aomedia:2504

Change-Id: I24bbb46ad8af2b75daebc54710df681a8f51acd1