drivers/*: add HAVE*

drivers/ads101x/Kconfig

@@ -36,5 +36,10 @@ config ADS101X_I2C_ADDRESS
         ADS101X allows for upto 4 devices on Single Bus. The value depends on
         the state of ADDR Pin. Default value (0x48) corresponds to ADDR pin tied
         to GND. For more information refer I2C Address Selection in Datasheet.
-
 endif # KCONFIG_USEMODULE_ADS101X
+
+config HAVE_ADS101X
+    bool
+    select MODULE_ADS101X if MODULE_SAUL_DEFAULT
+    help
+        Indicates that an ADS101X Analog-to-Digital converter is present.

drivers/bmx280/Kconfig

@@ -78,5 +78,6 @@ config HAVE_BMP280_SPI
 
 config HAVE_BMX280
     bool
+    select MODULE_BMX280 if MODULE_SAUL_DEFAULT
     help
         Indicates that a bmx280 sensor is present.

drivers/hts221/Kconfig

@@ -10,3 +10,9 @@ config MODULE_HTS221
     depends on HAS_PERIPH_I2C
     depends on TEST_KCONFIG
     select MODULE_PERIPH_I2C
+
+config HAVE_HTS221
+    bool
+    select MODULE_HTS221 if MODULE_SAUL_DEFAULT
+    help
+        Indicates that a ST HTS221 sensor is present.

drivers/lis3mdl/Kconfig

@@ -11,3 +11,9 @@ config MODULE_LIS3MDL
     depends on TEST_KCONFIG
     select MODULE_PERIPH_I2C
     select MODULE_XTIMER
+
+config HAVE_LIS3MDL
+    bool
+    select MODULE_LIS3MDL if MODULE_SAUL_DEFAULT
+    help
+        Indicates that a lismdl sensor is present.

drivers/sht3x/Kconfig

@@ -12,3 +12,9 @@ config MODULE_SHT3X
     select MODULE_PERIPH_I2C
     select MODULE_CHECKSUM
     select MODULE_XTIMER
+
+config HAVE_SHT3X
+    bool
+    select MODULE_SHT3X if MODULE_SAUL_DEFAULT
+    help
+        Indicates that a SHT30/SHT31/SHT35 sensor is present.