Reset GL_FRAMEBUFFER_SRGB state for ES tests
Reset GL_FRAMEBUFFER_SRGB state for ES tests

GL_EXT_sRGB_write_control adds new state "GL_FRAMEBUFFER_SRGB" which
is enabled by default. This was not reset between tests, meaning state
could leak between tests.

Affects: dEQP-GLES31.functional.fbo.srgb_write_control.
framebuffer_srgb_enabled

Components: AOSP

googlestadia/VK-GL-CTS,KhronosGroup/Vulkan-CTS,googlestadia/VK-GL-CTS,googlestadia/VK-GL-CTS,googlestadia/VK-GL-CTS,KhronosGroup/VK-GL-CTS,KhronosGroup/VK-GL-CTS,KhronosGroup/Vulkan-CTS,KhronosGroup/Vulkan-CTS,KhronosGroup/Vulkan-CTS,KhronosGroup/Vulkan-CTS,KhronosGroup/VK-GL-CTS,KhronosGroup/VK-GL-CTS,KhronosGroup/VK-GL-CTS,KhronosGroup/VK-GL-CTS,googlestadia/VK-GL-CTS,KhronosGroup/Vulkan-CTS,googlestadia/VK-GL-CTS