firmware: qcom: scm: Add function stubs for ARM64

This patch adds stubs for the SCM functions exposed in the QCOM SCM API.

Signed-off-by: Andy Gross <agross@codeaurora.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index d8de6a8..665efca 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -139,6 +139,14 @@
 	bool
 	depends on ARM || ARM64
 
+config QCOM_SCM_32
+	def_bool y
+	depends on QCOM_SCM && ARM
+
+config QCOM_SCM_64
+	def_bool y
+	depends on QCOM_SCM && ARM64
+
 source "drivers/firmware/broadcom/Kconfig"
 source "drivers/firmware/google/Kconfig"
 source "drivers/firmware/efi/Kconfig"