fix runtime issues for scripts

now, some script to update kernel-headers is not working.
because of wrong variable value and test codes.
so this issue is fixed.

Change-Id: Iffae9607858cc3c1c58fa24244be217b5a1ab06e

libc/kernel/tools/generate_uapi_headers.sh

@@ -159,7 +159,7 @@ if [[ ${KERNEL_DOWNLOAD} -eq 1 ]]; then
   cd "${TMPDIR}"
   echo "Fetching android kernel source ${KERNEL_VERSION}"
   git clone https://android.googlesource.com/kernel/common.git
-  cd "${COMMON}"
+  cd "${src_dir}"
   git checkout "${KERNEL_VERSION}"
   KERNEL_DIR="${TMPDIR}"
 elif [[ "${KERNEL_DIR}" == "" ]]; then
@@ -180,6 +180,8 @@ if [[ ${SKIP_GENERATION} -eq 0 ]]; then
   done
 fi
 
+cd ${ANDROID_BUILD_TOP}
+
 # Copy all of the include/uapi files to the kernel headers uapi directory.
 copy_hdrs "${KERNEL_DIR}/${src_dir}/include/uapi" "${ANDROID_KERNEL_DIR}/uapi"
 

libc/kernel/tools/update_all.py

@@ -40,12 +40,7 @@ else:
     if not os.path.isdir(original_dir):
         panic( "Missing directory, please specify one through command-line: %s\n" % original_dir )
 
-# Fixme: This should be removed after next release.
-# Do not update ion.h ion_test.h until after next release in aosp.
-source = subprocess.check_output('git remote show', shell=True).strip()
 skip_ion = False
-if source == "aosp":
-    skip_ion = True
 
 # find all source files in 'original'
 #