soc: qcom: rpmh and cmd-db drivers

Introduce two Qualcomm SoC drivers, the RPMh and cmd-db. RPMh is a the
name for the second generation Resource Power Management hub on Qualcomm
SoCs. Most core regulators have to be controlled via this hub.

The cmd-db is a region of memory which contains offsets and data about
how to communicate with the RPMh.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 85dac9d..dd3c85d 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -40,6 +40,7 @@
 	  This allows other drivers to verify the SoC familiy & revision using
 	  matching SoC attributes.
 
+source "drivers/soc/qcom/Kconfig"
 source "drivers/soc/ti/Kconfig"
 
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