arm64: dts: renesas: r8a779h0: Drop "opp-shared" from opp-table-0

The four Cortex-A76 CPU cores on R-Car V4M share their Operating
Performance Points (OPP) table, but they have independent clocks.
All cores in the cluster can switch DVFS states independently, hence
the cluster's OPP table should not have an "opp-shared" property.

Fixes: 6bd8b0bc ("arm64: dts: renesas: r8a779h0: Add CA76 operating points")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/4e0227ff4388485cdb1ca2855ee6df92754e756e.1718890585.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/r8a779h0.dtsi

@@ -16,7 +16,6 @@ / {
 
 	cluster0_opp: opp-table-0 {
 		compatible = "operating-points-v2";
-		opp-shared;
 
 		opp-500000000 {
 			opp-hz = /bits/ 64 <500000000>;