spl: Enable SPL remoteproc by default for K3 ARCH

If building for v7R and K3 architecture, enable SPL
remoteproc so that it does not have to be defined in each
board defconfig file.

Signed-off-by: Judith Mendez <jm@ti.com>
diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index 4e56d99..85225db 100644
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -1279,6 +1279,7 @@
 
 config SPL_REMOTEPROC
 	bool "Support REMOTEPROCS"
+	default y if (CPU_V7R && ARCH_K3)
 	help
 	  Enable support for REMOTEPROCs in SPL. This permits to load
 	  a remote processor firmware in SPL.