build: use allowed over enabled

Meson feature options are typically in a tri-state of enabled, disabled,
or auto.  The enabled and disabled functions on an option (from
`get_option`) no longer return true for auto features.  Instead, the
expectation is to use `allowed()` which is true for both enabled and auto.

Switch all uses of `enabled` to `allowed`.

Change-Id: I794c658531483266bfce6f9b28127a166ed01490
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson.build b/meson.build
index 310f987..2e4d8fd 100644
--- a/meson.build
+++ b/meson.build
@@ -31,7 +31,7 @@
 if cpp.has_header('poll.h')
     conf_data.set('PLDM_HAS_POLL', 1)
 endif
-if get_option('libpldmresponder').enabled()
+if get_option('libpldmresponder').allowed()
 conf_data.set_quoted('BIOS_JSONS_DIR', join_paths(package_datadir, 'bios'))
 conf_data.set_quoted('BIOS_TABLES_DIR', join_paths(package_localstatedir, 'bios'))
 conf_data.set_quoted('PDR_JSONS_DIR', join_paths(package_datadir, 'pdr'))
@@ -45,10 +45,10 @@
 conf_data.set('DBUS_TIMEOUT', get_option('dbus-timeout-value'))
 add_project_arguments('-DLIBPLDMRESPONDER', language : ['c','cpp'])
 endif
-if get_option('softoff').enabled()
+if get_option('softoff').allowed()
   conf_data.set('SOFTOFF_TIMEOUT_SECONDS', get_option('softoff-timeout-seconds'))
 endif
-if get_option('oem-ibm').enabled()
+if get_option('oem-ibm').allowed()
   conf_data.set_quoted('FILE_TABLE_JSON', join_paths(package_datadir, 'fileTable.json'))
   conf_data.set_quoted('LID_RUNNING_DIR', '/var/lib/phosphor-software-manager/hostfw/running')
   conf_data.set_quoted('LID_ALTERNATE_DIR', '/var/lib/phosphor-software-manager/hostfw/alternate')
@@ -96,7 +96,7 @@
   CLI11_dep = dependency('CLI11')
 endif
 
-if get_option('oe-sdk').enabled()
+if get_option('oe-sdk').allowed()
   # Setup OE SYSROOT
   OECORE_TARGET_SYSROOT = run_command('sh', '-c', 'echo $OECORE_TARGET_SYSROOT').stdout().strip()
   if OECORE_TARGET_SYSROOT == ''
@@ -110,7 +110,7 @@
   dynamic_linker = []
 endif
 
-if get_option('tests').enabled()
+if get_option('tests').allowed()
     gtest = dependency('gtest', main: true, disabler: true, required: false)
     gmock = dependency('gmock', disabler: true, required: false)
     if not gtest.found() or not gmock.found()
@@ -126,7 +126,7 @@
             gmock = gtest_proj.dependency('gmock')
         else
             assert(
-                not get_option('tests').enabled(),
+                not get_option('tests').allowed(),
                 'Googletest is required if tests are enabled'
             )
         endif
@@ -168,7 +168,7 @@
   stdplus,
 ]
 
-if get_option('libpldmresponder').enabled()
+if get_option('libpldmresponder').allowed()
 subdir('libpldmresponder')
 deps += [
   libpldmresponder_dep
@@ -190,7 +190,7 @@
   install: true,
   install_dir: get_option('bindir'))
 
-if get_option('systemd').enabled()
+if get_option('systemd').allowed()
   systemd_system_unit_dir = dependency('systemd').get_variable(
           'systemdsystemunitdir')
   filesystem.copyfile(
@@ -200,7 +200,7 @@
     install_dir: systemd_system_unit_dir
   )
 
-  if get_option('oem-ibm').enabled()
+  if get_option('oem-ibm').allowed()
     subdir('oem/ibm/service_files')
   endif
 endif
@@ -209,15 +209,15 @@
 
 subdir('configurations')
 
-if get_option('utilities').enabled()
+if get_option('utilities').allowed()
   subdir('utilities')
 endif
 
-if get_option('softoff').enabled()
+if get_option('softoff').allowed()
   subdir('softoff')
 endif
 
-if get_option('tests').enabled()
+if get_option('tests').allowed()
   subdir('common/test')
   subdir('fw-update/test')
   subdir('host-bmc/test')