sm8350-common: Correct sf idle timer value

Change-Id: I0a1b58a6527b5c58ab977a1db908ade1b93fa089

vendor.prop

@@ -155,7 +155,7 @@ debug.sf.high_fps_late_app_phase_offset_ns=1000000
 debug.sf.high_fps_late_sf_phase_offset_ns=-4000000
 debug.sf.hw=0
 debug.sf.latch_unsignaled=1
-debug.sf.set_idle_timer_ms=3000c
+debug.sf.set_idle_timer_ms=3000
 persist.sys.sf.color_mode=0
 persist.sys.sf.color_saturation=1.0
 ro.gfx.driver.1=com.qualcomm.qti.gpudrivers.lahaina.api30