meson: fix escape char handling in glib recipe
The \
char was lost and useful for aarch64-linux-gnu-* compiler.
giomodule.c was failing because of
-DGST_SDK_GLIB_GIO_DISTRO_GIO_MODULE_PATH=\"path\"
malformed
Edited by Nirbheek Chauhan
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The \
char was lost and useful for aarch64-linux-gnu-* compiler.
giomodule.c was failing because of
-DGST_SDK_GLIB_GIO_DISTRO_GIO_MODULE_PATH=\"path\"
malformed