[POWERPC] Fix CPM2 SCC1 clock initialization.

A missing break statement in a switch caused cpm2_clk_setup() to initialize
SCC2 instead of SCC1.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c
index 7be7112..dd066bb 100644
--- a/arch/powerpc/sysdev/cpm2.c
+++ b/arch/powerpc/sysdev/cpm2.c
@@ -240,6 +240,7 @@
 	case CPM_CLK_SCC1:
 		reg = &im_cpmux->cmx_scr;
 		shift = 24;
+		break;
 	case CPM_CLK_SCC2:
 		reg = &im_cpmux->cmx_scr;
 		shift = 16;