stv0991: Add basic stv0991 architecture support

stv0991 architecture support added. It contains the support for
following blocks
- Timer
- uart

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
[trini: Add arch/arm/cpu/armv7/Makefile hunk]
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/arch/arm/cpu/armv7/stv0991/lowlevel.S b/arch/arm/cpu/armv7/stv0991/lowlevel.S
new file mode 100644
index 0000000..6dafba3
--- /dev/null
+++ b/arch/arm/cpu/armv7/stv0991/lowlevel.S
@@ -0,0 +1,12 @@
+/*
+ * (C) Copyright 2014 stmicroelectronics
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <linux/linkage.h>
+
+ENTRY(lowlevel_init)
+	mov	pc, lr
+ENDPROC(lowlevel_init)