Fixed harmless typos in comments

9a26b3a8 · Steve Underwood · 6c037b0c · 9a26b3a8 · 9a26b3a8
--- a/libs/spandsp/src/spandsp/ima_adpcm.h
+++ b/libs/spandsp/src/spandsp/ima_adpcm.h
--- a/libs/spandsp/src/spandsp/private/ima_adpcm.h
+++ b/libs/spandsp/src/spandsp/private/ima_adpcm.h