nb/intel/sandybridge: Rename `pdwm_mode` enum

The `pdwm` part was supposed to be an abbreviation of `power down`, but
it is neither self-explanatory nor properly-spelled. Rename the enum.

Change-Id: I7b83c71d4534b62e18ced04eebe6a65089e1d874
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51901
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/src/northbridge/intel/sandybridge/raminit_common.c b/src/northbridge/intel/sandybridge/raminit_common.c
index 687386d..72621e3 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.c
+++ b/src/northbridge/intel/sandybridge/raminit_common.c
@@ -684,7 +684,7 @@
 }
 
 /* Obtain optimal power down mode for current configuration */
-static enum pdwm_mode get_power_down_mode(ramctr_timing *ctrl)
+static enum power_down_mode get_power_down_mode(ramctr_timing *ctrl)
 {
 	if (ctrl->tXP > 8)
 		return PDM_NONE;
@@ -703,7 +703,7 @@
 	u16 mr0reg, mch_cas, mch_wr;
 	static const u8 mch_wr_t[12] = { 1, 2, 3, 4, 0, 5, 0, 6, 0, 7, 0, 0 };
 
-	const enum pdwm_mode power_down = get_power_down_mode(ctrl);
+	const enum power_down_mode power_down = get_power_down_mode(ctrl);
 
 	const bool slow_exit = power_down == PDM_DLL_OFF || power_down == PDM_APD_DLL_OFF;
 
diff --git a/src/northbridge/intel/sandybridge/raminit_common.h b/src/northbridge/intel/sandybridge/raminit_common.h
index 1622259..c24b3a0 100644
--- a/src/northbridge/intel/sandybridge/raminit_common.h
+++ b/src/northbridge/intel/sandybridge/raminit_common.h
@@ -306,7 +306,7 @@
  */
 #define MRC_CACHE_VERSION 5
 
-enum pdwm_mode {
+enum power_down_mode {
 	PDM_NONE        = 0,
 	PDM_APD         = 1,
 	PDM_PPD         = 2,