Use draws instead of clears as temporary workaround for Qualcomm stencil clear bug

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 73df30b5f3a6176de7cc28f55bd6ebdf3a6d5deb..8d2cb52aade71d92e9ae06f7361104c74ce2c458 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -402,7 +402,8 @@ bool GrGLCaps::init(const GrGLContextInfo& ctxInfo, const GrGLInterface* gli) {
     }
 
     if (kPowerVR54x_GrGLRenderer == ctxInfo.renderer() ||
-        kPowerVRRogue_GrGLRenderer == ctxInfo.renderer()) {
+        kPowerVRRogue_GrGLRenderer == ctxInfo.renderer() ||
+        kQualcomm_GrGLVendor == ctxInfo.vendor()) {
         fUseDrawInsteadOfClear = true;
     }