Match 3 libultra funcs + some texture init labels (#383)

* Fix warnings

* Update src/thread0_epc.c

Co-authored-by: Ryan Myers <ryan.p.myers@gmail.com>

* identify some texture init stuff

* match _Litob

* match cosf

* match sinf

* formatting

* Update math.h

* Delete sinf.s

* quick fix

---------

Co-authored-by: Ryan Myers <ryan.p.myers@gmail.com>

include/libc/math.h

@@ -3,11 +3,8 @@
 
 #define M_PI 3.14159265358979323846
 
-float sinf(float); //official name: fsin
-double sin(double);
-float cosf(float);
-double cos(double);
-
-float sqrtf(float);
+f32 sinf(f32 x); //official name: fsin
+f32 cosf(f32 x);
+f32 sqrtf(f32 x);
 
 #endif