cpu/saml1x: Add Kconfig symbols

cpu/saml1x/Kconfig

@@ -5,4 +5,47 @@
 # directory for more details.
 #
 
+config CPU_COMMON_SAML1X
+    bool
+    select CPU_COMMON_SAM0
+    select CPU_CORE_CORTEX_M23
+    select HAS_CORTEXM_MPU
+    select HAS_CPU_SAML1X
+    select HAS_PERIPH_HWRNG
+
+config CPU_FAM_SAML10
+    bool
+    select CPU_COMMON_SAML1X
+
+config CPU_FAM_SAML11
+    bool
+    select CPU_COMMON_SAML1X
+
+## CPU Models
+config CPU_MODEL_SAML10E16A
+    bool
+    select CPU_FAM_SAML10
+
+config CPU_MODEL_SAML11E16A
+    bool
+    select CPU_FAM_SAML11
+
+## Declaration of specific features
+config HAS_CPU_SAML1X
+    bool
+    help
+        Indicates that a 'saml1x' cpu is being used.
+
+## Common CPU symbols
+config CPU_FAM
+    default "saml10" if CPU_FAM_SAML10
+    default "saml11" if CPU_FAM_SAML11
+
+config CPU_MODEL
+    default "saml10e16a" if CPU_MODEL_SAML10E16A
+    default "saml11e16a" if CPU_MODEL_SAML11E16A
+
+config CPU
+    default "saml1x" if CPU_COMMON_SAML1X
+
 source "$(RIOTCPU)/sam0_common/Kconfig"