ti_config_fragments: Update Kconfig option for Cadence DP PHY driver

Update Kconfig option for Cadence PHY driver from CONFIG_PHY_CADENCE_DP to
CONFIG_PHY_TORRENT in accordance with the changes done in Cadence Torrent
Phy driver Kconfig.

Signed-off-by: Yuti Amonkar <yamonkar@cadence.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>

ti_config_fragments/audio_display.cfg

@@ -34,7 +34,7 @@ CONFIG_DRM_CDNS_MHDP=m
 CONFIG_DRM_CDNS_DSI=n
 
 CONFIG_PHY_J721E_WIZ=y
-CONFIG_PHY_CADENCE_DP=y
+CONFIG_PHY_CADENCE_TORRENT=y
 
 # SGX driver needs legacy support
 CONFIG_DRM_LEGACY=y