MAINTAINERS: update maintainers list for Cypress

- Update maintainers' email with Infineon hosted email
- Add Chung-hsien Hsu as a maintainer
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201030085610.145679-1-chi-hsien.lin@cypress.com

MAINTAINERS

@@ -3541,11 +3541,12 @@ BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER
 M:	Arend van Spriel <arend.vanspriel@broadcom.com>
 M:	Franky Lin <franky.lin@broadcom.com>
 M:	Hante Meuleman <hante.meuleman@broadcom.com>
-M:	Chi-Hsien Lin <chi-hsien.lin@cypress.com>
-M:	Wright Feng <wright.feng@cypress.com>
+M:	Chi-hsien Lin <chi-hsien.lin@infineon.com>
+M:	Wright Feng <wright.feng@infineon.com>
+M:	Chung-hsien Hsu <chung-hsien.hsu@infineon.com>
 L:	linux-wireless@vger.kernel.org
 L:	brcm80211-dev-list.pdl@broadcom.com
-L:	brcm80211-dev-list@cypress.com
+L:	SHA-cyfmac-dev-list@infineon.com
 S:	Supported
 F:	drivers/net/wireless/broadcom/brcm80211/