This reverts commit 
e16fb2e6355c1c1b41623af9e01ada196e2af098.
Updated documentation from the chip vendor reveals that this clock is
not required for correct operation of the MMC controller. As such, do
not expose it to DT.
Signed-off-by: Michael Turquette <mturquette@baylibre.com>
 
 #define CLKID_HDMI_PCLK                  63
 #define CLKID_USB1_DDR_BRIDGE    64
 #define CLKID_USB0_DDR_BRIDGE    65
-/* CLKID_MMC_PCLK */          
+#define CLKID_MMC_PCLK           66
 #define CLKID_DVIN               67
 #define CLKID_UART2              68
 #define CLKID_SANA               69
 
 #define CLKID_CPUCLK           1
 #define CLKID_CLK81            12
 #define CLKID_ETH              36
-#define CLKID_MMC_PCLK         66
 
 #endif /* __GXBB_CLKC_H */