ram: k3-ddrss: add am62a controller support

TI's am62a family of SoCs uses a new 32bit DDR controller that shares
much of the same functionality with the existing am64 and j721e
controllers.

Select this controller by default when u-boot is build for the am62a

Signed-off-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/ram/Kconfig b/drivers/ram/Kconfig
index bf279b7..e085119 100644
--- a/drivers/ram/Kconfig
+++ b/drivers/ram/Kconfig
@@ -65,6 +65,7 @@
 	default K3_J721E_DDRSS if SOC_K3_J721E || SOC_K3_J721S2
 	default K3_AM64_DDRSS if SOC_K3_AM642
 	default K3_AM64_DDRSS if SOC_K3_AM625
+	default K3_AM62A_DDRSS if SOC_K3_AM62A7
 
 config K3_J721E_DDRSS
 	bool "Enable J721E DDRSS support"