ARM: configs: Add new config fragment to change RAM start point

Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/configs/dram_0xc0000000.config b/arch/arm/configs/dram_0xc0000000.config
new file mode 100644
index 0000000..343d533
--- /dev/null
+++ b/arch/arm/configs/dram_0xc0000000.config
@@ -0,0 +1 @@
+CONFIG_DRAM_BASE=0xc0000000