Port a bunch of libultra files from sm64

src/boot_O2_g3/boot_0x80080060.c

@@ -3,11 +3,11 @@
 
 void start(void) {
     StackCheck_Init(&bootStackEntry, (u32)bootStack, (u32)&bootStack[1024], 0, -1, "boot");
-    osMemSize = func_8008D350();
+    osMemSize = osGetMemSize();
     func_800818F4();
     osInitialize();
     osUnmapTLBAll();
-    D_80096B40 = func_80092920();
+    D_80096B40 = osCartRomInit();
     StackCheck_Init(&idleStackEntry, (u32)idleStack, (u32)&idleStack[1024], 0, 256, "idle");
     osCreateThread(&idleOSThread, 1, (osCreateThread_func)Idle_ThreadEntry, 0, &idleStack[1024], 12);
     osStartThread(&idleOSThread);

src/boot_O2_g3/boot_0x800805E0.c

@@ -10,7 +10,7 @@ UNK_RET func_800805E0(UNK_TYPE a0) {
             osViSetMode(&osViModeMpalLan1);
             break;
         case 0:
-            osViSetMode(&D_80097590);
+            osViSetMode(&osViModePalLan1);
             break;
         case 1:
             default:

src/boot_O2_g3/z_std_dma.c

@@ -2,7 +2,6 @@
 #include <global.h>
 
 s32 Dmamgr_DoDmaTransfer(u32 a0, void* a1, u32 a2) {
-    u32 spPad;
     OSIoMesg sp60;
     OSMesgQueue sp48;
     OSMesg sp44;