brotli: set CVE_PRODUCT to "google:brotli"

cve-check class is setting default CVE_PRODUCT to 'brotli' which ignores
the CVEs from NVD Database.

Reference:
CVE-2026-111497
https://nvd.nist.gov/vuln/detail/cve-2026-111497

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>

meta-oe/recipes-extended/brotli/brotli_1.2.1.bb

@@ -20,3 +20,5 @@ do_install:append () {
 }
 
 BBCLASSEXTEND = "native nativesdk"
+
+CVE_PRODUCT = "google:brotli"