meson: enable tests by default

Change-Id: I09f20388559ca645ecbb11489af8d279641aca2f
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson_options.txt b/meson_options.txt
index b0214ee..ae88ef3 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -9,6 +9,6 @@
 option('nvme', type: 'feature', value: 'disabled', description: 'Enable NVMe sensor.',)
 option('psu', type: 'feature', value: 'enabled', description: 'Enable PSU sensor.',)
 option('external', type: 'feature', value: 'enabled', description: 'Enable External sensor.',)
-option('tests', type: 'feature', description: 'Build tests.',)
+option('tests', type: 'feature', value: 'enabled', description: 'Build tests.',)
 option('validate-unsecure-feature', type : 'feature', value : 'disabled', description : 'Enables unsecure features required by validation. Note: mustbe turned off for production images.',)
 option('insecure-sensor-override', type : 'feature', value : 'disabled', description : 'Enables Sensor override feature without any check.',)