freedreno: Find curses properly for building fdperf

Upstream ncurses doesn't ship any legacy ncurses.pc pkg-config symlinks (just ncursesw.pc) which Void Linux strictly follows for example.

Meson (since 0.54) has a generic curses dependency which works perfectly in this case, thus also bump the toplevel minimum meson version from 0.53.

Before:

Run-time dependency ncurses found: NO (tried pkgconfig and cmake)

After:

Run-time dependency curses found: YES 6.3.20211021