ARM: HYP/non-sec: add separate section for secure code

In anticipation of refactoring the HYP/non-secure code to run
from secure RAM, add a new linker section that will contain that
code.

Nothing is using it just yet.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/arch/arm/lib/sections.c b/arch/arm/lib/sections.c
index 5b30bcb..a1205c3 100644
--- a/arch/arm/lib/sections.c
+++ b/arch/arm/lib/sections.c
@@ -25,4 +25,6 @@
 char __image_copy_end[0] __attribute__((section(".__image_copy_end")));
 char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start")));
 char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end")));
+char __secure_start[0] __attribute__((section(".__secure_start")));
+char __secure_end[0] __attribute__((section(".__secure_end")));
 char _end[0] __attribute__((section(".__end")));