config: rename parse_logsize to be more generic

Rename config_parse_logsize to config_parse_bytesize.
A more generic name allows this function to be reused in other
config parsing purposes.

Change-Id: I3036c184669be17ddc0d194f275ea05d871341d1
Signed-off-by: Medicine Yeh <medicinehy@gmail.com>
diff --git a/test/meson.build b/test/meson.build
index 0d08d19..39c9784 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -1,7 +1,7 @@
 tests = [
 	'test-client-escape',
 	'test-config-parse',
-	'test-config-parse-logsize',
+	'test-config-parse-bytesize',
 	'test-config-resolve-console-id',
 	'test-ringbuffer-boundary-poll',
 	'test-ringbuffer-boundary-read',