feat(ldo): add ldo regulator driver for public use

components/hal/esp32p4/include/hal/ldo_ll.h

@@ -18,7 +18,6 @@
 #include "hal/assert.h"
 #include "soc/pmu_struct.h"
 
-
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -28,6 +27,11 @@ extern "C" {
  */
 #define LDO_LL_UNIT_NUM    4
 
+#define LDO_LL_ADJUSTABLE_CHAN_MASK 0x0F // all the 4 channels can be adjustable
+
+#define LDO_LL_MAX_VOLTAGE_MV 3300
+#define LDO_LL_MIN_VOLTAGE_MV 500
+
 /**
  * LDO LL macros, these macros are in the unit of mV
  */