www/phpvirtualbox{,-legacy}: use one patch for both ports, remove "No newline at end of file" from patches

Forgot to commit this change in previous commit.

PR: 261498
Approved by: portmgr (blanket, fix run)
Fixes: c8ee98641064 (PHP 8.2 support - "utf8_encode()")
MFH: 2024Q2

(cherry picked from commit d77f8d92ff492b6f408bead68d5484c70a031fba)