extract definitions for EXT_CSD register EXT_CSD_PARTITIONING_SUPPORT

Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/mmc_cmds.c b/mmc_cmds.c
index 42bebb9..de12300 100644
--- a/mmc_cmds.c
+++ b/mmc_cmds.c
@@ -660,14 +660,14 @@
 		printf("H/W reset function"
 			" [RST_N_FUNCTION]: 0x%02x\n", ext_csd[162]);
 		printf("HPI management [HPI_MGMT]: 0x%02x\n", ext_csd[161]);
-		reg = ext_csd[160];
+		reg = ext_csd[EXT_CSD_PARTITIONING_SUPPORT];
 		printf("Partitioning Support [PARTITIONING_SUPPORT]: 0x%02x\n",
 			reg);
-		if (reg & 0x1)
+		if (reg & EXT_CSD_PARTITIONING_EN)
 			printf(" Device support partitioning feature\n");
 		else
 			printf(" Device NOT support partitioning feature\n");
-		if (reg & 0x2)
+		if (reg & EXT_CSD_ENH_ATTRIBUTE_EN)
 			printf(" Device can have enhanced tech.\n");
 		else
 			printf(" Device cannot have enhanced tech.\n");