MAINTAINERS: Lauri is still available but is really low on time nowadays

CC: Lauri Kasanen <cand@gmx.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

MAINTAINERS

@@ -515,7 +515,7 @@ LoongArch                           [2] Shiyou Yin
 Darwin (macOS, iOS)                 [2] Marvin Scholz
 Mac OS X / PowerPC                  [0]
 Amiga / PowerPC                         Colin Ward
-Linux / PowerPC                         Lauri Kasanen
+Linux / PowerPC                     [1] Lauri Kasanen
 RISC-V                              [2] Rémi Denis-Courmont
 Windows MinGW                           Alex Beregszaszi, Ramiro Polla
 Windows Cygwin                          Victor Paesa