snapdragon: Add DRAM detection & FDT fixup

Fixup the Linux FDT with the detection of onboard DRAM as
provided by SBL (Secondary boot loader) by reading
the shared-memory region.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
diff --git a/arch/arm/mach-snapdragon/Makefile b/arch/arm/mach-snapdragon/Makefile
index 1d35fea..f375d07 100644
--- a/arch/arm/mach-snapdragon/Makefile
+++ b/arch/arm/mach-snapdragon/Makefile
@@ -9,3 +9,4 @@
 obj-$(CONFIG_TARGET_DRAGONBOARD410C) += pinctrl-apq8016.o
 obj-$(CONFIG_TARGET_DRAGONBOARD410C) += pinctrl-snapdragon.o
 obj-y += clock-snapdragon.o
+obj-y += dram.o