Enable the Intel clock driver and modify coral's device tree to use it.

Signed-off-by: Simon Glass <s...@chromium.org>
Reviewed-by: Bin Meng <bmeng...@gmail.com>
---

Changes in v3: None
Changes in v2:
- Move intel-clock.h inclusion to the correct patch

 arch/x86/cpu/apollolake/Kconfig   | 3 +++
 arch/x86/dts/chromebook_coral.dts | 5 +++++
 2 files changed, 8 insertions(+)

diff --git a/arch/x86/cpu/apollolake/Kconfig b/arch/x86/cpu/apollolake/Kconfig
index a760e0ac68..6d6e98a589 100644
--- a/arch/x86/cpu/apollolake/Kconfig
+++ b/arch/x86/cpu/apollolake/Kconfig
@@ -40,6 +40,9 @@ config INTEL_APOLLOLAKE
        imply INTEL_GPIO
        imply SMP
        imply HAVE_ITSS
+       imply CLK
+       imply CMD_CLK
+       imply CLK_INTEL
 
 if INTEL_APOLLOLAKE
 
diff --git a/arch/x86/dts/chromebook_coral.dts 
b/arch/x86/dts/chromebook_coral.dts
index a1820fa187..a4a9e949e6 100644
--- a/arch/x86/dts/chromebook_coral.dts
+++ b/arch/x86/dts/chromebook_coral.dts
@@ -39,6 +39,11 @@
                stdout-path = &serial;
        };
 
+       clk: clock {
+               compatible = "intel,apl-clk";
+               #clock-cells = <1>;
+       };
+
        cpus {
                u-boot,dm-pre-reloc;
                #address-cells = <1>;
-- 
2.25.0.341.g760bfbb309-goog

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