PowerCap: Add to drivers Kconfig and Makefile

Added changes to Makefile and Kconfig to include in driver build.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/Kconfig

@@ -166,4 +166,6 @@ source "drivers/reset/Kconfig"
 
 source "drivers/fmc/Kconfig"
 
+source "drivers/powercap/Kconfig"
+
 endmenu

drivers/Makefile

@@ -152,3 +152,4 @@ obj-$(CONFIG_VME_BUS)		+= vme/
 obj-$(CONFIG_IPACK_BUS)		+= ipack/
 obj-$(CONFIG_NTB)		+= ntb/
 obj-$(CONFIG_FMC)		+= fmc/
+obj-$(CONFIG_POWERCAP)		+= powercap/