edify extensions for OTA package installation, part 2

Adds more edify functions for OTAs:

  is_mounted getprop apply_patch apply_patch_check apply_patch_space
  write_raw_image write_firmware_image package_extract_file

This allows us to install radios, hboots, boot images, and install
incremental OTA packages.

Fixes a couple of dumb bugs in edify itself:

  - we were doubling the size of the function table each time it was
    *not* full, rather than each time it was full

  - "no such function" errors weren't visible to the parser, so they
    didn't prevent execution of the script.

1 files changed, 4 insertions, 3 deletions

diff --git a/updater/updater.c b/updater/updater.c
index aa03803..0977625 100644
--- a/updater/updater.c
+++ b/updater/updater.c
@@ -80,10 +80,11 @@ int main(int argc, char** argv) {
     // Parse the script.
 
     Expr* root;
+    int error_count = 0;
     yy_scan_string(script);
-    int error = yyparse(&root);
-    if (error != 0) {
-        fprintf(stderr, "%d parse errors\n", error);
+    int error = yyparse(&root, &error_count);
+    if (error != 0 || error_count > 0) {
+        fprintf(stderr, "%d parse errors\n", error_count);
         return 6;
     }