[PATCH] ieee802154: Fix build error

[Jinjie Ruan]

If REGMAP_SPI is m and IEEE802154_MCR20A is y,

        mcr20a.c:(.text+0x3ed6c5b): undefined reference to 
`__devm_regmap_init_spi'
        ld: mcr20a.c:(.text+0x3ed6cb5): undefined reference to 
`__devm_regmap_init_spi'

Select REGMAP_SPI for IEEE802154_MCR20A to fix it.

Fixes: 8c6ad9cc5157 ("ieee802154: Add NXP MCR20A IEEE 802.15.4 transceiver 
driver")
Signed-off-by: Jinjie Ruan <ruanjin...@huawei.com>
---
 drivers/net/ieee802154/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ieee802154/Kconfig b/drivers/net/ieee802154/Kconfig
index 95da876c5613..1075e24b11de 100644
--- a/drivers/net/ieee802154/Kconfig
+++ b/drivers/net/ieee802154/Kconfig
@@ -101,6 +101,7 @@ config IEEE802154_CA8210_DEBUGFS
 
 config IEEE802154_MCR20A
        tristate "MCR20A transceiver driver"
+       select REGMAP_SPI
        depends on IEEE802154_DRIVERS && MAC802154
        depends on SPI
        help
-- 
2.34.1