fix(versal): use only one space for indentation

Trivial patch to remove additional space.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Change-Id: Ifa33dee81243c0b21ca0f13b8e4d575646818162
diff --git a/plat/xilinx/versal/pm_service/pm_api_sys.c b/plat/xilinx/versal/pm_service/pm_api_sys.c
index e464d32..8fa8a44 100644
--- a/plat/xilinx/versal/pm_service/pm_api_sys.c
+++ b/plat/xilinx/versal/pm_service/pm_api_sys.c
@@ -462,7 +462,7 @@
 		}
 		gicd_write_irouter(gicv3_driver_data->gicd_base,
 				  (uint32_t)PLAT_VERSAL_IPI_IRQ, MODE);
-		ret =  PM_RET_SUCCESS;
+		ret = PM_RET_SUCCESS;
 		break;
 	default:
 		return PM_RET_ERROR_NOTSUPPORTED;