ARM: PSCI: Make psci_get_cpu_stack_top local to armv7/psci.S

Now that we have a secure data section for storing variables, there
should be no need for platform code to get the stack address.

Make psci_get_cpu_stack_top a local function, as it should only be
used in armv7/psci.S and only by psci_stack_setup.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
index 50dfddb..350b75c 100644
--- a/arch/arm/cpu/armv7/psci.S
+++ b/arch/arm/cpu/armv7/psci.S
@@ -213,7 +213,7 @@
 @ --------------------  __secure_stack_start
 @
 @ This expects CPU ID in r0 and returns stack top in r0
-ENTRY(psci_get_cpu_stack_top)
+LENTRY(psci_get_cpu_stack_top)
 	@ stack top = __secure_stack_end - (cpuid << ARM_PSCI_STACK_SHIFT)
 	ldr	r3, =__secure_stack_end
 	sub	r0, r3, r0, LSL #ARM_PSCI_STACK_SHIFT