x86: geode/legacy: fix missing watchdog core dependencies

This patch follows the other patches that added the watchdog
core to various (armvirt, malta, ath79, ...) targets that
have been hit by the following build error:

Package kmod-hwmon-sch5627 is missing dependencies for the following libraries:
watchdog.ko

In theory, we could have just added the CONFIG_WATCHDOG_CORE=y
to the Kconfig variable of kmod-hwmon-sch5627's package definition.
This would have forced the watchdog core to be builtin and less
architectures would need to be updated. But we might as well follow
through here.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

target/linux/x86/geode/config-4.19

@@ -122,6 +122,7 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
 CONFIG_VIA_RHINE=y
 CONFIG_VIA_RHINE_MMIO=y
+CONFIG_WATCHDOG_CORE=y
 # CONFIG_WDT is not set
 # CONFIG_X86_ACPI_CPUFREQ is not set
 # CONFIG_X86_AMD_PLATFORM_DEVICE is not set

target/linux/x86/geode/config-5.4

@@ -122,6 +122,7 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
 CONFIG_VIA_RHINE=y
 CONFIG_VIA_RHINE_MMIO=y
+CONFIG_WATCHDOG_CORE=y
 # CONFIG_WDT is not set
 # CONFIG_X86_ACPI_CPUFREQ is not set
 # CONFIG_X86_AMD_PLATFORM_DEVICE is not set

target/linux/x86/legacy/config-4.19

@@ -206,6 +206,7 @@ CONFIG_USB_STORAGE=y
 CONFIG_VGACON_SOFT_SCROLLBACK=y
 # CONFIG_VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT is not set
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
+CONFIG_WATCHDOG_CORE=y
 # CONFIG_WDT is not set
 CONFIG_X86_ACPI_CPUFREQ=y
 # CONFIG_X86_ACPI_CPUFREQ_CPB is not set

target/linux/x86/legacy/config-5.4

@@ -206,6 +206,7 @@ CONFIG_USB_STORAGE=y
 CONFIG_VGACON_SOFT_SCROLLBACK=y
 # CONFIG_VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT is not set
 CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
+CONFIG_WATCHDOG_CORE=y
 # CONFIG_WDT is not set
 CONFIG_X86_ACPI_CPUFREQ=y
 # CONFIG_X86_ACPI_CPUFREQ_CPB is not set