dt-bindings: clk: r7s72100: Add missing I and G clocks

Add the missing definitions for the I (CPU) and G (Image Processing)
clocks, so these clocks can be referred to from device nodes in DT.

Note that these clocks are already fully supported otherwise (DT
bindings, Linux driver, r7s72100.dtsi), they were just omitted from the
header file.

Signed-off-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Simon Horman <[e-mail]>

include/dt-bindings/clock/r7s72100-clock.h

···
 #define __DT_BINDINGS_CLOCK_R7S72100_H__
 
 #define R7S72100_CLK_PLL	0
+#define R7S72100_CLK_I		1
+#define R7S72100_CLK_G		2
 
 /* MSTP2 */
 #define R7S72100_CLK_CORESIGHT	0