Increase framebuffer memory pool so it can hold 6 framebuffers [1/1]

PD#GH-1202
BUG=190485198

Problem:
Increase framebuffer memory pool so it can hold 6 framebuffers

Solution:
Increase framebuffer memory pool so it can hold 6 framebuffers

Verify:
adt3

Signed-off-by: Liang Ji <liang.ji@amlogic.com>
Change-Id: I2711107539efacdb810e8e10ca1f14f3e3d14533

arch/arm64/boot/dts/amlogic/g12a_s905y2_deadpool.dts

@@ -90,8 +90,8 @@
 		ion_fb_reserved:linux,ion-fb {
 			compatible = "amlogic, ion-fb-mem";
 			reusable;
-			/* 1920x1080x4x3 round up 4M align */
-			size = <0x0 0x1c00000>;
+			/* 1920x1080x4x6 round up 4M align */
+			size = <0x0 0x3400000>;
 			alignment = <0x0 0x400000>;
 		};
 		//di_reserved:linux,di {