ARM: tegra210: clock: implement PLLD2 support

PLLD2 is a simple clock (controlled by 2 registers) and appears starting
from T30. Primary use of PLLD2 is as main HDMI clock parent.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/arch/arm/include/asm/arch-tegra210/clock-tables.h b/arch/arm/include/asm/arch-tegra210/clock-tables.h
index c6d7487..5c4d7fc 100644
--- a/arch/arm/include/asm/arch-tegra210/clock-tables.h
+++ b/arch/arm/include/asm/arch-tegra210/clock-tables.h
@@ -24,6 +24,7 @@
 	CLOCK_ID_XCPU = CLOCK_ID_FIRST_SIMPLE,
 	CLOCK_ID_EPCI,
 	CLOCK_ID_SFROM32KHZ,
+	CLOCK_ID_DISPLAY2,
 	CLOCK_ID_DP,
 
 	/* These are the base clocks (inputs to the Tegra SoC) */
@@ -37,7 +38,6 @@
 	 * These are clock IDs that are used in table clock_source[][]
 	 * but will not be assigned as a clock source for any peripheral.
 	 */
-	CLOCK_ID_DISPLAY2,
 	CLOCK_ID_CGENERAL_0,
 	CLOCK_ID_CGENERAL_1,
 	CLOCK_ID_CGENERAL2,