qcom.h: mmc: Update partition layout for GBL efi

Addint efi partition to copy the GBL efi app, we load and
run the efi app (gbl_aarch64.efi) by running:
    => load mmc 0:1 ${kernel_addr_r} gbl_aarch64.efi
    => bootefi ${kernel_addr_r}

Also GBL need _a/_b slots for boot partitions otherwise we
run into following error during boot:
    Panics! panicked at external/gbl/efi/src/main.rs:84:36:
    called `Result::unwrap()` on an `Err` value: StorageError(NotExist)

Change-Id: I782b214837b7986feac6bbfdffaeecec4b7051d8
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
1 file changed