[stage2] Accomodate raw_mmc_dev to latest sdmmc driver changes

stage1 -> stage2 again

[stage1] unstub multiple sector-r/w code

fusee: undo a silly mistake in longer-than-8K operations

We actually need the pk1 key

Merge pull request #93 from encounter/fix/stage2-args ...

Fix stage2_args_t mismatch

Fix misconception in latest commit

[stage2] Refactor key_derivation type and function declarations

Move sd init into diskio.c, write code for latest commit

fusee: allow sdmmc_read / sdmmc_write of more data than fits in the bounce buffer

[exosphere] linker.ld: remove some unneeded "AT" commands

[exosphere] Map the crt0 too

[exosphere] Rewrite crt0/init and ld script

Exosphere: Fix crt0 bug resulting in bad relocation calculations

Add code to register rawnand, boot0, and bcpkg2

raw_mmc_dev: fields should be u64

[stage2] Implement package1_parse_boot0

[stage2] Add bct.h

Apply sdmmc stage1 changes to stage2

fusee: actually obey the SD spec when switching voltage

[stage2] Add GPT parsing code (tested on PC)

fusee: support low-voltage SDMMC mode

fusee: use full bus width and faster initial clock speed

[stage2] raw_mmc_dev.c: fix various bugs

Merge pull request #84 from leoetlino/printf-format ...

ldr: Fix printf format string for size_t

Merge pull request #94 from encounter/fix/boot-fsdev ...

boot: Use fsdevMountSdmc & fsdevUnmountAll

[stage2] Make console.c manage the display, enable it only when needed

[stage2] Unstub rawmmcdev_write

[sdmmc] sdmmc_handle_cpu_transfer: handle unaligned buffers

Fix struct tegra_sdmmc definition ...

Definition errors were cancelling each other (for the most part)