meson.options: Fix some warnings

Warning messages:
```
meson.options:129: WARNING: Project targets '>=1.1.1' but uses
feature deprecated since '1.1.0': "boolean option" keyword argument
"value" of type str. use a boolean, not a string

meson.options:144: WARNING: Project targets '>=1.1.1' but uses
feature deprecated since '1.1.0': "boolean option" keyword argument
"value" of type str. use a boolean, not a string
```

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I69f41cca5cc792e89306531d380d52b19ec41775
diff --git a/meson.options b/meson.options
index 2b809c2..c2891bc 100644
--- a/meson.options
+++ b/meson.options
@@ -127,7 +127,7 @@
 )
 
 option('only-run-apr-on-power-loss', type : 'boolean',
-    value : 'false',
+    value : false,
     description : 'Only run automatic restore policy due to loss of AC power.'
 )
 
@@ -142,6 +142,6 @@
 )
 
 option('only-allow-boot-when-bmc-ready', type : 'boolean',
-    value : 'false',
+    value : false,
     description : 'Only allow chassis and host power on operations when BMC is Ready.'
 )