MAINTAINERS: add maintainer for Qualcomm FastRPC driver

For some reason I forgot to add myself as maintainer when we
upstreamed FastRPC patches.

Add myself and Amol from Qualcomm as maintainers for Qualcomm FastRPC driver.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20211124142325.27108-1-srinivas.kandagatla@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MAINTAINERS

@@ -15771,6 +15771,15 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/net/qcom,ethqos.txt
 F:	drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
 
+QUALCOMM FASTRPC DRIVER
+M:	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+M:	Amol Maheshwari <amahesh@qti.qualcomm.com>
+L:	linux-arm-msm@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
+F:	drivers/misc/fastrpc.c
+F:	include/uapi/misc/fastrpc.h
+
 QUALCOMM GENERIC INTERFACE I2C DRIVER
 M:	Akash Asthana <akashast@codeaurora.org>
 M:	Mukesh Savaliya <msavaliy@codeaurora.org>