[sonic-platform-common] submodule update (#9022)

8bb9c5a (HEAD -> master, origin/master, origin/HEAD) Add retry reading/setting mux status to simulated y-cable driver (#221)
2ebd786 [sfp-refactor] Add initial support for SFF-8636 in sonic_xcvr (#218)
221fb8a Fix QSFP-DD power class mask (#212)
4598d40 [Y-Cable][Broadcom] upgrade to support Broadcom Y-Cable API to release 1.2 (#217)
0fdd198 [sfp-refactor] Add initial support for SFF-8436 in sonic_xcvr (#215)
a09f5a3 [sfp-refactor] Add new sonic_xcvr package for common transceiver logic (#201)
7ca4f51 Update SFP index definition (#214)

Signed-off-by: vaibhav-dahiya <[email protected]>