arm: mach-k3: j721e: Move booting of Main R5FSS Core0 to A72 U-Boot

The Main R5FSS Core0 on J721E SoCs is originally booted from R5 SPL
itself to achieve certain product-level early-boot metrics. This is
no longer supported after the R5 SPL re-architecture (support merged
for v2021.10-rc1). Move the booting of this core altogether from R5
SPL to A72 U-Boot.

The env variables are left as is for now, and will be cleaned up
in a subsequent patch.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210726211311.5977-2-s-anna@ti.com
diff --git a/include/configs/j721e_evm.h b/include/configs/j721e_evm.h
index 759b7ab..a6d998e 100644
--- a/include/configs/j721e_evm.h
+++ b/include/configs/j721e_evm.h
@@ -129,6 +129,7 @@
 
 #ifdef CONFIG_TARGET_J721E_A72_EVM
 #define DEFAULT_RPROCS	""						\
+		"2 /lib/firmware/j7-main-r5f0_0-fw "			\
 		"3 /lib/firmware/j7-main-r5f0_1-fw "			\
 		"4 /lib/firmware/j7-main-r5f1_0-fw "			\
 		"5 /lib/firmware/j7-main-r5f1_1-fw "			\