clk: mmp: add timer clock for pxa168/mmp2/pxa910

Timer has external fast clock, and it is a mux clock.
Add the timer clock type for timer driver.

Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
diff --git a/include/dt-bindings/clock/marvell,pxa168.h b/include/dt-bindings/clock/marvell,pxa168.h
index 84ce5de..3e45bdf 100644
--- a/include/dt-bindings/clock/marvell,pxa168.h
+++ b/include/dt-bindings/clock/marvell,pxa168.h
@@ -18,6 +18,7 @@
 #define PXA168_CLK_PLL1_13_1_5		18
 #define PXA168_CLK_PLL1_2_1_5		19
 #define PXA168_CLK_PLL1_3_16		20
+#define PXA168_CLK_PLL1_192		21
 #define PXA168_CLK_UART_PLL		27
 #define PXA168_CLK_USB_PLL		28
 
@@ -41,6 +42,7 @@
 #define PXA168_CLK_SSP2			76
 #define PXA168_CLK_SSP3			77
 #define PXA168_CLK_SSP4			78
+#define PXA168_CLK_TIMER		79
 
 /* axi periphrals */
 #define PXA168_CLK_DFC			100