falcon: Label firmware partitions

Change-Id: I669a48c852ab24bcf7ef3a6592d5988aa3e38dc7
falcon: Move GPE ext4 entry to fstab

Change-Id: Idf62a4e9cde2e09d07bbeb875066d941375d0c91
falcon: Re-order filesystem type check for GPE

Change-Id: I7608799423134c1c2fc6d14e2072a2a12b330a79