Fix OpenGL ES version string Cache only the major and minor version for GLES Bug: angleproject:386749841 Change-Id: I936ee56f19d1d459f855a643f9b67ae4f596a1d5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/7047080 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: mohan maiya <m.maiya@samsung.com>