ARM: configs: at91: sama7: add MCHP PDMC and DMIC drivers

Enable drivers needed for Microchip's PDMC and PDM microphones.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220307122202.2251639-7-codrin.ciubotariu@microchip.com

arch/arm/configs/sama7_defconfig

@@ -153,6 +153,8 @@ CONFIG_SND_SOC_MIKROE_PROTO=m
 CONFIG_SND_MCHP_SOC_I2S_MCC=y
 CONFIG_SND_MCHP_SOC_SPDIFTX=y
 CONFIG_SND_MCHP_SOC_SPDIFRX=y
+CONFIG_SND_MCHP_SOC_PDMC=y
+CONFIG_SND_SOC_DMIC=y
 CONFIG_SND_SOC_PCM5102A=y
 CONFIG_SND_SOC_SPDIF=y
 CONFIG_SND_SIMPLE_CARD=y