platform: msm_shared: fix value for has-slot properties

fastboot expects the values to be either "yes" or "no", so adjust the
properties so that fastboot can actually tell that we have slots.

This makes flashing to the "boot" partition possible as fastboot will
automatically pick "boot_a" or "boot_b" based on the current slot.

Test: fastboot flash boot boot.img
Change-Id: I2836b374007f0584d2f0ee19ab4ce1901488dbb8
diff --git a/platform/msm_shared/ab_partition_parser.c b/platform/msm_shared/ab_partition_parser.c
index 1324e30..64e259c 100644
--- a/platform/msm_shared/ab_partition_parser.c
+++ b/platform/msm_shared/ab_partition_parser.c
@@ -616,14 +616,14 @@
 				/* 2. put the partition name in array */
 				tmp = pname_size-strlen(suffix_str);
 				strlcpy(has_slot_pname[count], pname, tmp+1);
-				strlcpy(has_slot_reply[count], " Yes", MAX_RSP_SIZE);
+				strlcpy(has_slot_reply[count], "yes", MAX_RSP_SIZE);
 				count++;
 			}
 		}
 		else
 		{
 			strlcpy(has_slot_pname[count], pname, MAX_GET_VAR_NAME_SIZE);
-			strlcpy(has_slot_reply[count], " No", MAX_RSP_SIZE);
+			strlcpy(has_slot_reply[count], "no", MAX_RSP_SIZE);
 			count++;
 		}