[source] ipq806x: fix a kconfig issue

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/fddd53261219902e3a446030d175e65bea090380

commit fddd53261219902e3a446030d175e65bea090380
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Nov 4 12:35:25 2016 +0100

    ipq806x: fix a kconfig issue
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 ...lect-ARM_CPU_SUSPEND-for-power-management.patch | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/target/linux/ipq806x/patches-4.4/030-ARM-qcom-select-ARM_CPU_SUSPEND-for-power-management.patch b/target/linux/ipq806x/patches-4.4/030-ARM-qcom-select-ARM_CPU_SUSPEND-for-power-management.patch
new file mode 100644
index 0000000..cb2d303
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/030-ARM-qcom-select-ARM_CPU_SUSPEND-for-power-management.patch
@@ -0,0 +1,30 @@
+From: Arnd Bergmann <arnd at arndb.de>
+Date: Tue, 24 Nov 2015 23:13:09 +0100
+Subject: [PATCH] ARM: qcom: select ARM_CPU_SUSPEND for power management
+
+The qcom spm driver uses cpu_resume_arm(), which is not included
+in the kernel in all configurations:
+
+drivers/built-in.o: In function `qcom_cpu_spc':
+:(.text+0xbc022): undefined reference to `cpu_suspend'
+drivers/built-in.o: In function `qcom_cpuidle_init':
+:(.init.text+0x610c): undefined reference to `cpu_resume_arm'
+
+This adds a 'select' Kconfig statement to ensure it's always
+enabled.
+
+Signed-off-by: Arnd Bergmann <arnd at arndb.de>
+Reviewed-by: Stephen Boyd <sboyd at codeaurora.org>
+Signed-off-by: Andy Gross <agross at codeaurora.org>
+---
+
+--- a/drivers/soc/qcom/Kconfig
++++ b/drivers/soc/qcom/Kconfig
+@@ -13,6 +13,7 @@ config QCOM_GSBI
+ config QCOM_PM
+ 	bool "Qualcomm Power Management"
+ 	depends on ARCH_QCOM && !ARM64
++	select ARM_CPU_SUSPEND
+ 	select QCOM_SCM
+ 	help
+ 	  QCOM Platform specific power driver to manage cores and L2 low power