Big commit

Big commit

malloc(3) is now newlib's implementation instead of my shitty one. Turns out; after poking around the latest linker.ld in libctr9, all this time...

It was a linker script issue. I. Hate. Everything.

Miscellaneous changes also here:
 * f{whatever} -> cr{whatever} to avoid clashes with newlib (and hopefully facillitate replacement)
 * FIRM allocation size was made to be fixed at 0x100000 as a stopgap. Turns out that memory corruption was massive, and the only thing saving my ass before was the allocator being...dumb.