want to use Axis I,J,K,U,V,W

Upto I,J,K,U compiles. But adding V&W getting below errors.

Marlin\src\HAL\STM32\../../inc/../core/types.h: In member function 'void XYZval::set(T, T, T, T, T, T, T)':
Marlin\src\HAL\STM32\../../inc/../core/types.h:497:155: error: 'pu' was not declared in this scope; did you mean 'px'?
497 | FI void set(const T px, const T py, const T pz, const T pi, const T pj, const T pk, const T pm) { x = px; y = py; z = pz; i = pi; j = pj; k = pk; u = pu; }
Marlin\src\HAL\STM32\../../inc/../core/types.h: In member function 'XYZval& XYZval::operator*=(const float&)':
Marlin\src\HAL\STM32\../../inc/../core/types.h:596:151: error: assignment of read-only location 'v'
596 | FI XYZval& operator*=(const float &v) { NUM_AXIS_CODE(x *= v, y *= v, z *= v, i *= v, j *= v, k *= v, u *= v, v *= v, w *= v); return *this; }

Start in Marlin/src/core/types.h at the reported lines 497 and 596, then reproduce the build with the V and W axes enabled. Check that the reported compile errors are resolved and confirm the firmware compiles successfully for the STM32 target.

Written by the indexing model from the issue text.