Cannot build perl 5.35.1

[fperrad]

There are new variables in xconfig.h.

xconfig.h:2312:3: error: invalid preprocessing directive #HAS_NON_INT_BITFIELDS
 2312 | # HAS_NON_INT_BITFIELDS /**/
      |   ^~~~~~~~~~~~~~~~~~~~~
xconfig.h:2500:3: error: invalid preprocessing directive #HAS_FFS
 2500 | # HAS_FFS  /**/
      |   ^~~~~~~
xconfig.h:2501:3: error: invalid preprocessing directive #HAS_FFSL
 2501 | # HAS_FFSL  /**/
      |   ^~~~~~~~
xconfig.h:3446:3: error: invalid preprocessing directive #HAS_STRXFRM_L
 3446 | # HAS_STRXFRM_L /**/
      |   ^~~~~~~~~~~~~

[arsv]

Fixed, patches added for 5.35.1 and 5.35.2.