Apply consistent naming scheme for hostlib functions.

The chromeos-installer uses several functions from the vboot_reference
userspace library, but the names of those functions are inconsistent:

  IsZero
  MapFile
  VbGetSystemPropertyString
  cgpt_add
  cgpt_boot
  cgpt_create
  cgpt_get_boot_partition_number
  cgpt_get_num_non_empty_partitions
  cgpt_get_partition_details
  cgpt_prioritize
  cgpt_set_attributes
  find_kernel_config

The Google C++ style guide says types and functions should use CamelCase,
while variables use lower_case_with_underscores.

Kernel style (which vboot_reference tries to be more-or-less compatible
with) uses lower_case_with_underscores for everything, but that really only
has to apply to firmware stuff. For userspace, we can use the Google style.

BUG=chromium:221544
BRANCH=none
TEST=buildbot
CQ-DEPEND=CL:46045

Renaming/cleanup only; no functional changes.

Change-Id: I9c82c9ff8909be88586194c8ffdb435fc771195f
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/46044
diff --git a/cgpt/cmd_find.c b/cgpt/cmd_find.c
index 459c101..4b2964d 100644
--- a/cgpt/cmd_find.c
+++ b/cgpt/cmd_find.c
@@ -153,10 +153,10 @@
   if (optind < argc) {
     for (i=optind; i<argc; i++) {
       params.drive_name = argv[i];
-      cgpt_find(&params);
+      CgptFind(&params);
       }
   } else {
-      cgpt_find(&params);
+      CgptFind(&params);
   }
 
   if (params.oneonly && params.hits != 1) {