shader: Handle SLE and SGT

These opcodes are emitted when running firefox youtube on top of wayland.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/virgl/virglrenderer/-/merge_requests/979>
diff --git a/src/vrend_shader.c b/src/vrend_shader.c
index fdcfefc..68af433 100644
--- a/src/vrend_shader.c
+++ b/src/vrend_shader.c
@@ -5659,6 +5659,12 @@
    case TGSI_OPCODE_SLT:
       emit_compare("lessThan");
       break;
+   case TGSI_OPCODE_SLE:
+      emit_compare("lessThanEqual");
+      break;
+   case TGSI_OPCODE_SGT:
+      emit_compare("greaterThan");
+      break;
    case TGSI_OPCODE_ISLT:
    case TGSI_OPCODE_USLT:
    case TGSI_OPCODE_FSLT: