Fix doc comments typos (#6499)

diff --git a/packages/flutter_tools/lib/src/android/android_sdk.dart b/packages/flutter_tools/lib/src/android/android_sdk.dart
index e509d6b..65e3edc 100644
--- a/packages/flutter_tools/lib/src/android/android_sdk.dart
+++ b/packages/flutter_tools/lib/src/android/android_sdk.dart
@@ -153,7 +153,7 @@
         .toList();
     }
 
-    // Match up platforms with the best cooresponding build-tools.
+    // Match up platforms with the best corresponding build-tools.
     _sdkVersions = platforms.map((String platformName) {
       int platformVersion;