meson: Format build files with `meson format`

Additionally, add the formatting command to `scripts/pre-submit` so it's
run by OpenBMC's CI (via `scripts/run-ci`).

Change-Id: Ifb8fc06106b8cfa9155e986528b769a5ca450b4c
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
diff --git a/tests/dsp/meson.build b/tests/dsp/meson.build
index c457260..dd2b5b0 100644
--- a/tests/dsp/meson.build
+++ b/tests/dsp/meson.build
@@ -1,15 +1,19 @@
 tests += [
-  'dsp/base',
-  'dsp/bios_table',
-  'dsp/bios',
-  'dsp/firmware_update',
-  'dsp/fru',
-  'dsp/pdr',
-  'dsp/platform',
+    'dsp/base',
+    'dsp/bios_table',
+    'dsp/bios',
+    'dsp/firmware_update',
+    'dsp/fru',
+    'dsp/pdr',
+    'dsp/platform',
 ]
 
-test('dsp/bios_table_iter',
-  executable('bios_table_iter',
-             'bios_table_iter.c',
-             implicit_include_directories: false,
-             include_directories: test_include_dirs))
+test(
+    'dsp/bios_table_iter',
+    executable(
+        'bios_table_iter',
+        'bios_table_iter.c',
+        implicit_include_directories: false,
+        include_directories: test_include_dirs,
+    ),
+)