clk/qcom: move from mach-snapdragon

Clock drivers don't belong here, move them to the right place and
declutter mach-snapdragon a bit.

To de-couple these drivers from specific "target" platforms, add
additional config options to enable each clock driver gated behind a
common CLK_QCOM option and enable them by default for the respective
targets. This will make future work easier as we move towards a generic
Qualcomm target.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
diff --git a/arch/arm/mach-snapdragon/Kconfig b/arch/arm/mach-snapdragon/Kconfig
index 2fc1521..dde37ec 100644
--- a/arch/arm/mach-snapdragon/Kconfig
+++ b/arch/arm/mach-snapdragon/Kconfig
@@ -15,6 +15,7 @@
 config SDM845
 	bool "Qualcomm Snapdragon 845 SoC"
 	select LINUX_KERNEL_IMAGE_HEADER
+	imply CLK_QCOM_SDM845
 
 config LNX_KRNL_IMG_TEXT_OFFSET_BASE
 	default 0x80000000
@@ -26,6 +27,7 @@
 	bool "96Boards Dragonboard 410C"
 	select BOARD_LATE_INIT
 	select ENABLE_ARM_SOC_BOOT0_HOOK
+	imply CLK_QCOM_APQ8016
 	help
 	  Support for 96Boards Dragonboard 410C. This board complies with
 	  96Board Open Platform Specifications. Features:
@@ -39,6 +41,7 @@
 
 config TARGET_DRAGONBOARD820C
 	bool "96Boards Dragonboard 820C"
+	imply CLK_QCOM_APQ8096
 	help
 	  Support for 96Boards Dragonboard 820C. This board complies with
 	  96Board Open Platform Specifications. Features:
@@ -72,6 +75,7 @@
 config TARGET_QCS404EVB
 	bool "Qualcomm Technologies, Inc. QCS404 EVB"
 	select LINUX_KERNEL_IMAGE_HEADER
+	imply CLK_QCOM_QCS404
 	help
 	  Support for Qualcomm Technologies, Inc. QCS404 evaluation board.
 	  Features: