build-configs.yaml: Enable CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH=m in x86-board fragment

The snd-soc-sof_nau8825.ko module fails to link without
sof_realtek_common support. ChromeOS-specific platform fragments already
address this by setting CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH=m, which
enables sof_realtek_common. Apply the same change to the x86-board
fragment for consistency.

Signed-off-by: Laura Nao <laura.nao@collabora.com>

Author: laura-nao

config/core/build-configs.yaml

@@ -894,6 +894,7 @@ fragments:
       - 'CONFIG_SND_SOC_INTEL_KBL_RT5663_MAX98927_MACH=m'
       - 'CONFIG_SND_SOC_INTEL_SOF_CML_RT1011_RT5682_MACH=m'
       - 'CONFIG_SND_SOC_INTEL_SOF_NAU8825_MACH=m'
+      - 'CONFIG_SND_SOC_INTEL_SOF_RT5682_MACH=m'
       - 'CONFIG_SND_SOC_MAX98927=m'
       - 'CONFIG_SND_SOC_SOF_ACPI=m'
       - 'CONFIG_SND_SOC_SOF_AMD_COMMON=m'