This patch enables the ARM_SMC_WATCHDOG support. Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com> Change-Id: Icf6eee99960f0a635a1378b532afd582ec8b6c4d Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/299849 Tested-by: Eric FOURMONT <eric.fourmont-ext@st.com> Reviewed-by: Eric FOURMONT <eric.fourmont-ext@st.com> Domain-Review: Eric FOURMONT <eric.fourmont-ext@st.com> ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com> ACI: CIBUILD <MDG-smet-aci-builds@list.st.com>