Turn off execute bit

Change-Id: I711920dde1560ca202ef878ee93a2af61545524b
diff --git a/audio/audio_hw.c b/audio/audio_hw.c
old mode 100755
new mode 100644
diff --git a/audio/ril_interface.c b/audio/ril_interface.c
old mode 100755
new mode 100644
diff --git a/audio/ril_interface.h b/audio/ril_interface.h
old mode 100755
new mode 100644