qemu-spoof: SMBIOS type3/4/11/17 identity

Wire the remaining SMBIOS getters (module already derives them):
- type3 chassis type (Desktop/Notebook, from the persona machine class)
- type4 processor socket designation + processor manufacturer (CPU-vendor anchored)
- type11 OEM strings: QEMU emits no type 11 at all (a tell); emit the spoofed
  OEM string when config provided none
- type17 memory manufacturer / serial / part (brand-correct, per-unit)
All inert unless a spoof-seed is set (getters return the stock value when off).
The type0 "VM" bit is handled by 0015; the spoof.h include is added there.
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index 7d71418..0d8e569 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -656,7 +656,7 @@ static void smbios_build_type_3_table(void)
     SMBIOS_BUILD_TABLE_PRE(3, T3_BASE, true); /* required */
 
     SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
-    t->type = 0x01; /* Other */
+    t->type = spoof_smbios_chassis_type(0x01); /* Other (3=Desktop, 10=Notebook) */
     SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
     SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
     SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
@@ -690,11 +690,13 @@ static void smbios_build_type_4_table(MachineState *ms, unsigned instance,
     SMBIOS_BUILD_TABLE_PRE_SIZE(4, T4_BASE + instance,
                                 true, tbl_len); /* required */
 
-    snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
+    snprintf(sock_str, sizeof(sock_str), "%s%2x",
+             spoof_smbios_cpu_socket(type4.sock_pfx), instance);
     SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
     t->processor_type = 0x03; /* CPU */
     t->processor_family = 0xfe; /* use Processor Family 2 field */
-    SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
+    SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str,
+                         spoof_smbios_cpu_manufacturer(type4.manufacturer));
     if (type4.processor_id == 0) {
         t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
         t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
@@ -825,13 +827,23 @@ static void smbios_build_type_11_table(void)
 {
     char count_str[128];
     size_t i;
+    /* qemu-spoof: real machines expose OEM strings here; QEMU emits no type 11 at
+     * all, which is itself a tell. If config gave none, emit the spoofed one. */
+    const char *spoof_oem = spoof_smbios_oem_string(NULL);
 
-    if (type11.nvalues == 0) {
+    if (type11.nvalues == 0 && !spoof_oem) {
         return;
     }
 
     SMBIOS_BUILD_TABLE_PRE(11, T11_BASE, true); /* required */
 
+    if (type11.nvalues == 0) {
+        t->count = 1;
+        SMBIOS_TABLE_SET_STR_LIST(11, spoof_oem);
+        SMBIOS_BUILD_TABLE_POST;
+        return;
+    }
+
     snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
     t->count = type11.nvalues;
 
@@ -900,10 +912,13 @@ static void smbios_build_type_17_table(unsigned instance, uint64_t size)
     t->memory_type = 0x07; /* RAM */
     t->type_detail = cpu_to_le16(0x02); /* Other */
     t->speed = cpu_to_le16(type17.speed);
-    SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
-    SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
+    SMBIOS_TABLE_SET_STR(17, manufacturer_str,
+                         spoof_smbios_mem_manufacturer(type17.manufacturer));
+    SMBIOS_TABLE_SET_STR(17, serial_number_str,
+                         spoof_smbios_mem_serial(type17.serial));
     SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
-    SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
+    SMBIOS_TABLE_SET_STR(17, part_number_str,
+                         spoof_smbios_mem_part(type17.part));
     t->attributes = 0; /* Unknown */
     t->configured_clock_speed = t->speed; /* reuse value for max speed */
     t->minimum_voltage = cpu_to_le16(0); /* Unknown */