meson: fix gpiod dependency

gpiod is not a "common" dependency, but only needed for specific
options.  Add it as a dependency only when necessary.

Name the dependency as `libgpiod_dep` to follow meson conventions.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib650f5fe4e7085733f43eba608502e7e21a5c8db
diff --git a/eeprom-device/meson.build b/eeprom-device/meson.build
index 7dafd7b..a9e5b02 100644
--- a/eeprom-device/meson.build
+++ b/eeprom-device/meson.build
@@ -5,19 +5,13 @@
 
 eeprom_device_include = include_directories('.')
 
-libgpiod = dependency(
-    'libgpiodcxx',
-    default_options: ['bindings=cxx'],
-    version: '>=1.1.2',
-)
-
 executable(
     'phosphor-eepromdevice-software-update',
     'eeprom_device_software_manager.cpp',
     'eeprom_device.cpp',
     eeprom_device_version_src,
     include_directories: [common_include, eeprom_device_include],
-    dependencies: [sdbusplus_dep, phosphor_logging_dep, libgpiod],
+    dependencies: [sdbusplus_dep, phosphor_logging_dep, libgpiod_dep],
     link_with: [software_common_lib, libpldmutil],
     install: true,
     install_dir: get_option('libexecdir') / 'phosphor-code-mgmt',