ARM: dts: am335x: Guardian: Disable poweroff support from RTC

 * Disabling poweroff support form RTC will allow poweroff
   to handle from other machanism
Signed-off-by: Gireesh Hiremath <Gireesh.Hiremath@in.bosch.com>
Message-Id: <20220325100613.1494-5-Gireesh.Hiremath@in.bosch.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am335x-guardian.dts

@@ -282,7 +282,6 @@ &mmc1 {
 &rtc {
 	clocks = <&clk_32768_ck>, <&clk_24mhz_clkctrl AM3_CLK_24MHZ_CLKDIV32K_CLKCTRL 0>;
 	clock-names = "ext-clk", "int-clk";
-	system-power-controller;
 };
 
 &spi0 {