refactor(jpeg): move sleep retention config into driver layer

Move per-target JPEG regdma retention descriptors out of esp_hal_jpeg
and into
esp_driver_jpeg so the codec driver owns its backup scope and restore
flow.

components/esp_driver_jpeg/esp32p4/jpeg_retention.c

@@ -0,0 +1,28 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "jpeg_private.h"
+
+// JPEG_CONFIG_REG JPEG_INT_ENA_REG
+#define JPEG_RETENTION_REGS_CNT 2
+#define JPEG_RETENTION_REGS_BASE (DR_REG_JPEG_BASE + 0x0)
+static const uint32_t jpeg_regs_map[4] = {0x8001, 0x0, 0x0, 0x0};
+static const regdma_entries_config_t jpeg_regdma_entries[] = {
+    [0] = {
+        .config = REGDMA_LINK_ADDR_MAP_INIT(REGDMA_JPEG_LINK(0x00),
+                                            JPEG_RETENTION_REGS_BASE, JPEG_RETENTION_REGS_BASE,
+                                            JPEG_RETENTION_REGS_CNT, 0, 0,
+                                            jpeg_regs_map[0], jpeg_regs_map[1],
+                                            jpeg_regs_map[2], jpeg_regs_map[3]),
+        .owner = ENTRY(0) | ENTRY(2),
+    },
+};
+
+const jpeg_reg_retention_info_t jpeg_reg_retention_info = {
+    .entry_array = jpeg_regdma_entries,
+    .array_size = ARRAY_SIZE(jpeg_regdma_entries),
+    .module_id = SLEEP_RETENTION_MODULE_JPEG,
+};