cmake: POSIX/RPi build don't need patch/genromfs (#4733)

cmake/toolchains/Toolchain-arm-linux-gnueabihf-raspbian.cmake

@@ -7,7 +7,6 @@
 # C_COMPILER
 # CMAKE_SYSTEM_NAME
 # CMAKE_SYSTEM_VERSION
-# GENROMFS
 # LINKER_FLAGS
 # CMAKE_EXE_LINKER_FLAGS
 # CMAKE_FIND_ROOT_PATH
@@ -63,7 +62,7 @@ foreach(tool objcopy nm ld)
 endforeach()
 
 # os tools
-foreach(tool echo patch grep rm mkdir nm genromfs cp touch make unzip)
+foreach(tool echo grep rm mkdir nm cp touch make unzip)
 	string(TOUPPER ${tool} TOOL)
 	find_program(${TOOL} ${tool})
 	if(NOT ${TOOL})

cmake/toolchains/Toolchain-native.cmake

@@ -8,7 +8,7 @@ foreach(tool nm ld)
 endforeach()
 
 # os tools
-foreach(tool echo patch grep rm mkdir nm genromfs cp touch make unzip)
+foreach(tool echo grep rm mkdir nm cp touch make unzip)
 	string(TOUPPER ${tool} TOOL)
 	find_program(${TOOL} ${tool})
 	if(NOT ${TOOL})