Revert "meson: drop GLESv1 .so version back to 1.0.0"

Revert "meson: drop GLESv1 .so version back to 1.0.0"

This patch claimed that the autotools build generates libGLESv1_CM.so.1.0.0, but
it doesn't:

es1api_libGLESv1_CM_la_LDFLAGS = \
        -no-undefined \
        -version-number 1:1 \
        $(GC_SECTIONS) \
        $(LD_NO_UNDEFINED)

Revert commit cc15460e182148292be877bec5a8a61cec57377d to ensure that the
autotools and meson builds produce the same libraries.

Fixes: cc15460e182148292be8 "meson: drop GLESv1 .so version back to 1.0.0"
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>