dt-bindings: clk: g12a-clkc: add PCIE PLL clock ID

Add a clock ID for the reference clock feeding the USB3+PCIe Combo PHY.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lkml.kernel.org/r/20190307141455.23879-3-narmstrong@baylibre.com

include/dt-bindings/clock/g12a-clkc.h

@@ -132,5 +132,6 @@
 #define CLKID_MALI				175
 #define CLKID_MPLL_5OM				177
 #define CLKID_CPU_CLK				187
+#define CLKID_PCIE_PLL				201
 
 #endif /* __G12A_CLKC_H */