remoteproc: fix spelling mistake "Peripherial" -> "Peripherial" in Kconfig

There is a spelling mistake in the Kconfig help text. Fix it.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201204193411.1152006-1-colin.king@canonical.comSigned-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/Kconfig

@@ -183,7 +183,7 @@ config QCOM_Q6V5_PAS
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
 	help
-	  Say y here to support the TrustZone based Peripherial Image Loader
+	  Say y here to support the TrustZone based Peripheral Image Loader
 	  for the Qualcomm Hexagon v5 based remote processors. This is commonly
 	  used to control subsystems such as ADSP, Compute and Sensor.