ARM: configs: multi_v7: enable NVMEM driver for STM32

Enable the STMicroelectronics NVMEM drivers used on
STM32 MPU, STM32MP15x and STM32MP13x, to access OTPs.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Link: https://lore.kernel.org/r/20230202130040.25233-1-alexandre.torgue@foss.st.comSigned-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/configs/multi_v7_defconfig

@@ -1209,6 +1209,7 @@ CONFIG_RAS=y
 CONFIG_NVMEM_IMX_OCOTP=y
 CONFIG_NVMEM_QCOM_QFPROM=y
 CONFIG_NVMEM_ROCKCHIP_EFUSE=m
+CONFIG_NVMEM_STM32_ROMEM=m
 CONFIG_NVMEM_SUNXI_SID=y
 CONFIG_NVMEM_VF610_OCOTP=y
 CONFIG_NVMEM_MESON_MX_EFUSE=m