clk: meson-axg: add pcie and mipi clock bindings

Add the pcie and mipi clock dt-bindings for the pcie driver.

Since the mipi clock isalso used by the pcie driver,
we add it together in this patch.
Tested-by: Jianxin Qin <jianxin.qin@amlogic.com>
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

include/dt-bindings/clock/axg-clkc.h

@@ -68,5 +68,8 @@
 #define CLKID_SD_EMMC_B_CLK0			59
 #define CLKID_SD_EMMC_C_CLK0			60
 #define CLKID_HIFI_PLL				69
+#define CLKID_PCIE_CML_EN0			79
+#define CLKID_PCIE_CML_EN1			80
+#define CLKID_MIPI_ENABLE			81
 
 #endif /* __AXG_CLKC_H */