add module to coverage unix port list

Author: FoamyGuy

ports/unix/variants/coverage/mpconfigvariant.mk

@@ -37,6 +37,7 @@ SRC_BITMAP := \
 	shared-bindings/audiodelays/Echo.c \
 	shared-bindings/audiodelays/Chorus.c \
 	shared-bindings/audiodelays/PitchShift.c \
+	shared-bindings/audiodelays/GranularPitchShift.c \
 	shared-bindings/audiodelays/MultiTapDelay.c \
 	shared-bindings/audiodelays/__init__.c \
 	shared-bindings/audiofilters/Distortion.c \
@@ -85,6 +86,7 @@ SRC_BITMAP := \
 	shared-module/audiodelays/Echo.c \
 	shared-module/audiodelays/Chorus.c \
 	shared-module/audiodelays/PitchShift.c \
+	shared-module/audiodelays/GranularPitchShift.c \
 	shared-module/audiodelays/MultiTapDelay.c \
 	shared-module/audiodelays/__init__.c \
 	shared-module/audiofilters/Distortion.c \