ARM: k2g: Add pll data

Add pll data for k2g

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/mach-keystone/clock.c b/arch/arm/mach-keystone/clock.c
index 6cb6467..d936896 100644
--- a/arch/arm/mach-keystone/clock.c
+++ b/arch/arm/mach-keystone/clock.c
@@ -31,6 +31,7 @@
 	[TETRIS_PLL]	= {KS2_ARMPLLCTL0, KS2_ARMPLLCTL1},
 	[DDR3A_PLL]	= {KS2_DDR3APLLCTL0, KS2_DDR3APLLCTL1},
 	[DDR3B_PLL]	= {KS2_DDR3BPLLCTL0, KS2_DDR3BPLLCTL1},
+	[UART_PLL]	= {KS2_UARTPLLCTL0, KS2_UARTPLLCTL1},
 };
 
 inline void pll_pa_clk_sel(void)
@@ -313,6 +314,10 @@
 			ret = external_clk[ddr3b_clk];
 			reg = KS2_DDR3BPLLCTL0;
 			break;
+		case UART_PLL:
+			ret = external_clk[uart_clk];
+			reg = KS2_UARTPLLCTL0;
+			break;
 		default:
 			return 0;
 		}