raphael: cleanup FM setup

BoardConfig.mk

@@ -54,9 +54,6 @@ TARGET_FS_CONFIG_GEN := $(DEVICE_PATH)/config.fs
 TARGET_INPUTDISPATCHER_SKIP_EVENT_KEY := 338
 TARGET_USES_FOD_ZPOS := true
 
-# FM
-BOARD_HAVE_QCOM_FM := true
-
 # HIDL
 DEVICE_FRAMEWORK_COMPATIBILITY_MATRIX_FILE := \
     vendor/lineage/config/device_framework_matrix.xml

vendor.prop

@@ -32,7 +32,6 @@ vendor.audio.feature.external_dsp.enable=false
 vendor.audio.feature.external_speaker.enable=false
 vendor.audio.feature.external_speaker_tfa.enable=false
 vendor.audio.feature.fluence.enable=true
-vendor.audio.feature.fm.enable=true
 vendor.audio.feature.hdmi_edid.enable=true
 vendor.audio.feature.hdmi_passthrough.enable=false
 vendor.audio.feature.hfp.enable=true
@@ -169,6 +168,8 @@ ro.frp.pst=/dev/block/bootdevice/by-name/frp
 
 # FM
 vendor.hw.fm.init=0
+vendor.audio.feature.fm.enable=true
+ro.vendor.fm.use_audio_session=true
 
 # FS-verity
 ro.apk_verity.mode=2